List of counties in Missouri

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There are 114 counties and one independent city in the U.S. state of Missouri.

In Missouri, the county level of government level comes between those of the city and the state. Its main responsibilities include maintaining roads, providing security, prosecuting criminals, and collecting taxes. Elected officials at this level include a sheriff, prosecuting attorney, and assessor.[1]


The city of St. Louis is an independent city, and is not within the limits of a county. Its residents voted to secede from Saint Louis County in 1876. Throughout the United States, St. Louis is one of three independent cities outside the state of Virginia (the other two are Baltimore, Maryland and Carson City, Nevada).[2]

Counties[change | change source]

County
FIPS Code
[3]
County seat
[4]
Established
[4]
Formed from
Meaning of name
[5][6]
Population
Area
[4]
Map
Adair County 001 Kirksville 1841 Macon County John Adair (1757–1840), pioneer, soldier, and seventh Governor of Kentucky &&&&&&&&&&025607.&&&&&025,607 &&&&&&&&&&&&0568.&&&&&0568 sq mi
(&&&&&&&&&&&01471.&&&&&01,471 km²)
State map highlighting Adair County
Andrew County 003 Savannah 1841 Part of the Platte Purchase Andrew Jackson Davis (1826–1910), spiritualist and missionary who settled in St. Louis &&&&&&&&&&017291.&&&&&017,291 &&&&&&&&&&&&0435.&&&&&0435 sq mi
(&&&&&&&&&&&01127.&&&&&01,127 km²)
State map highlighting Andrew County
Atchison County 005 Rock Port 1843 Holt County, part of the Platte Purchase U.S. Senator David Rice Atchison (1807–1886), a Democrat from Missouri &&&&&&&&&&&05685.&&&&&05,685 &&&&&&&&&&&&0545.&&&&&0545 sq mi
(&&&&&&&&&&&01412.&&&&&01,412 km²)
State map highlighting Atchison County
Audrain County 007 Mexico 1831 Callaway, Monroe and Ralls counties James H. Audrain, a War of 1812 colonel Missouri State Legislator &&&&&&&&&&025529.&&&&&025,529 &&&&&&&&&&&&0693.&&&&&0693 sq mi
(&&&&&&&&&&&01795.&&&&&01,795 km²)
State map highlighting Audrain County
Barry County 009 Cassville 1835 Greene County William Taylor Barry (1784–1835), jurist and United States Postmaster General &&&&&&&&&&035597.&&&&&035,597 &&&&&&&&&&&&0779.&&&&&0779 sq mi
(&&&&&&&&&&&02018.&&&&&02,018 km²)
State map highlighting Barry County
Barton County 011 Lamar 1855 Jasper County U.S. Senator David Barton (1783–1837), one of the first senators from Missouri &&&&&&&&&&012402.&&&&&012,402 &&&&&&&&&&&&0594.&&&&&0594 sq mi
(&&&&&&&&&&&01538.&&&&&01,538 km²)
State map highlighting Barton County
Bates County 013 Butler 1841 Van Buren (now Cass) County Frederick Bates (1777–1825), the second governor of Missouri &&&&&&&&&&017049.&&&&&017,049 &&&&&&&&&&&&0848.&&&&&0848 sq mi
(&&&&&&&&&&&02196.&&&&&02,196 km²)
State map highlighting Bates County
Benton County 015 Warsaw 1835 Pettis and Greene counties Thomas Hart Benton (1782–1858), U.S. Senator from Missouri &&&&&&&&&&019056.&&&&&019,056 &&&&&&&&&&&&0706.&&&&&0706 sq mi
(&&&&&&&&&&&01829.&&&&&01,829 km²)
State map highlighting Benton County
Bollinger County 017 Marble Hill 1851 Cape Girardeau, Madison, Stoddard and Wayne counties George Frederick Bollinger (1770–1842), early settler of Missouri &&&&&&&&&&012363.&&&&&012,363 &&&&&&&&&&&&0621.&&&&&0621 sq mi
(&&&&&&&&&&&01608.&&&&&01,608 km²)
State map highlighting Bollinger County
Boone County 019 Columbia 1821 Howard County Daniel Boone (1734–1820), American pioneer and hunter &&&&&&&&&0162642.&&&&&0162,642 &&&&&&&&&&&&0685.&&&&&0685 sq mi
(&&&&&&&&&&&01774.&&&&&01,774 km²)
State map highlighting Boone County
Buchanan County 021 Saint Joseph 1838 Part of the Platte Purchase James Buchanan (1791–1868), 15th President of the United States &&&&&&&&&&089201.&&&&&089,201 &&&&&&&&&&&&0410.&&&&&0410 sq mi
(&&&&&&&&&&&01062.&&&&&01,062 km²)
State map highlighting Buchanan County
Butler County 023 Poplar Bluff 1849 Wayne County William O. Butler (1791–1880), U.S. Representative from Kentucky and vice-presidential nominee under Lewis Cass &&&&&&&&&&042794.&&&&&042,794 &&&&&&&&&&&&0698.&&&&&0698 sq mi
(&&&&&&&&&&&01808.&&&&&01,808 km²)
State map highlighting Butler County
Caldwell County 025 Kingston 1836 Ray County Disputed; either John Caldwell, an Indian scout and friend of respected Colonel Alexander William Doniphan; John Caldwell, Lieutenant Governor of Kentucky; or Mathew Caldwell, a signer of the Texas Declaration of Independence &&&&&&&&&&&09424.&&&&&09,424 &&&&&&&&&&&&0429.&&&&&0429 sq mi
(&&&&&&&&&&&01111.&&&&&01,111 km²)
State map highlighting Caldwell County
Callaway County 027 Fulton 1821 Boone, Howard and Montgomery counties James Callaway (1783–1815), soldier during the War of 1812 and grandson of Daniel Boone &&&&&&&&&&044332.&&&&&044,332 &&&&&&&&&&&&0839.&&&&&0839 sq mi
(&&&&&&&&&&&02173.&&&&&02,173 km²)
State map highlighting Callaway County
Camden County 029 Camdenton 1841 Benton, Morgan and Pulaski counties Charles Pratt, 1st Earl Camden (1714–1794), an English lawyer, judge, Whig politician, and proponent of civil liberties &&&&&&&&&&044002.&&&&&044,002 &&&&&&&&&&&&0655.&&&&&0655 sq mi
(&&&&&&&&&&&01696.&&&&&01,696 km²)
State map highlighting Camden County
Cape Girardeau County 031 Jackson 1812 One of the five original counties Sieur de Girardot, a French officer and early explorer of the region &&&&&&&&&&075674.&&&&&075,674 &&&&&&&&&&&&0579.&&&&&0579 sq mi
(&&&&&&&&&&&01500.&&&&&01,500 km²)
State map highlighting Cape Girardeau County
Carroll County 033 Carrollton 1833 Ray County Charles Carroll (1737–1832), delegate to the Continental Congress and U.S. Senator for Maryland &&&&&&&&&&&09295.&&&&&09,295 &&&&&&&&&&&&0695.&&&&&0695 sq mi
(&&&&&&&&&&&01800.&&&&&01,800 km²)
State map highlighting Carroll County
Carter County 035 Van Buren 1859 Oregon, Reynolds, Ripley and Shannon counties Zimri Carter, pioneering settler &&&&&&&&&&&06265.&&&&&06,265 &&&&&&&&&&&&0508.&&&&&0508 sq mi
(&&&&&&&&&&&01316.&&&&&01,316 km²)
State map highlighting Carter County
Cass County 037 Harrisonville 1833 Jackson County Lewis Cass (1782–1866), senator from Michigan &&&&&&&&&&099478.&&&&&099,478 &&&&&&&&&&&&0699.&&&&&0699 sq mi
(&&&&&&&&&&&01810.&&&&&01,810 km²)
State map highlighting Cass County
Cedar County 039 Stockton 1845 Dade and St. Clair counties Named for the abundance of Eastern Red Cedar trees &&&&&&&&&&013982.&&&&&013,982 &&&&&&&&&&&&0476.&&&&&0476 sq mi
(&&&&&&&&&&&01233.&&&&&01,233 km²)
State map highlighting Cedar County
Chariton County 041 Keytesville 1821 Howard County Chariton River, a tributary of the Missouri River, whose naming origin is disputed &&&&&&&&&&&07831.&&&&&07,831 &&&&&&&&&&&&0756.&&&&&0756 sq mi
(&&&&&&&&&&&01958.&&&&&01,958 km²)
State map highlighting Chariton County
Christian County 043 Ozark 1859 Greene, Taney and Webster counties William Christian (1743–1786), colonel in the American Revolution &&&&&&&&&&077422.&&&&&077,422 &&&&&&&&&&&&0563.&&&&&0563 sq mi
(&&&&&&&&&&&01458.&&&&&01,458 km²)
State map highlighting Christian County
Clark County 045 Kahoka 1836 Lewis County William Clark (1770–1838), American explorer, soldier, Indian agent, and territorial governor &&&&&&&&&&&07139.&&&&&07,139 &&&&&&&&&&&&0507.&&&&&0507 sq mi
(&&&&&&&&&&&01313.&&&&&01,313 km²)
State map highlighting Clark County
Clay County 047 Liberty 1822 Ray County Henry Clay (1777–1852), American Senator and orator from Kentucky &&&&&&&&&0221939.&&&&&0221,939 &&&&&&&&&&&&0396.&&&&&0396 sq mi
(&&&&&&&&&&&01026.&&&&&01,026 km²)
State map highlighting Clay County
Clinton County 049 Plattsburg 1833 Clay County George Clinton (1739–1812), soldier and Governor of New York, considered one of the Founding Fathers of the United States &&&&&&&&&&020743.&&&&&020,743 &&&&&&&&&&&&0419.&&&&&0419 sq mi
(&&&&&&&&&&&01085.&&&&&01,085 km²)
State map highlighting Clinton County
Cole County 051 Jefferson City 1820 Cooper County Stephen Cole, pioneering settler &&&&&&&&&&075990.&&&&&075,990 &&&&&&&&&&&&0392.&&&&&0392 sq mi
(&&&&&&&&&&&01015.&&&&&01,015 km²)
State map highlighting Cole County
Cooper County 053 Boonville 1818 Howard County Sarshel Benjamin Cooper, pioneering settler &&&&&&&&&&017601.&&&&&017,601 &&&&&&&&&&&&0565.&&&&&0565 sq mi
(&&&&&&&&&&&01463.&&&&&01,463 km²)
State map highlighting Cooper County
Crawford County 055 Steelville 1829 Gasconade County William H. Crawford (1772–1834), U.S. Senator from Georgia, U.S. Secretary of Treasury, and judge &&&&&&&&&&024696.&&&&&024,696 &&&&&&&&&&&&0743.&&&&&0743 sq mi
(&&&&&&&&&&&01924.&&&&&01,924 km²)
State map highlighting Crawford County
Dade County 057 Greenfield 1841 Barry and Polk counties Major Francis L. Dade (1793?–1835), Major in the U.S. 4th Infantry Regiment, United States Army, during the Second Seminole War &&&&&&&&&&&07883.&&&&&07,883 &&&&&&&&&&&&0490.&&&&&0490 sq mi
(&&&&&&&&&&&01269.&&&&&01,269 km²)
State map highlighting Dade County
Dallas County 059 Buffalo 1841 Polk County George M. Dallas (1792–1864), U.S. Vice President under James K. Polk &&&&&&&&&&016777.&&&&&016,777 &&&&&&&&&&&&0542.&&&&&0542 sq mi
(&&&&&&&&&&&01404.&&&&&01,404 km²)
State map highlighting Dallas County
Daviess County 061 Gallatin 1836 Ray County Joseph Hamilton Daviess (1774–1811), commanded the Dragoons of the Indiana Militia at the Battle of Tippecanoe &&&&&&&&&&&08433.&&&&&08,433 &&&&&&&&&&&&0567.&&&&&0567 sq mi
(&&&&&&&&&&&01469.&&&&&01,469 km²)
State map highlighting Daviess County
DeKalb County 063 Maysville 1843 Clinton County Johann de Kalb (1721–1780), a German soldier who served as a major general in the Continental Army during the American Revolutionary War &&&&&&&&&&012892.&&&&&012,892 &&&&&&&&&&&&0424.&&&&&0424 sq mi
(&&&&&&&&&&&01098.&&&&&01,098 km²)
State map highlighting DeKalb County
Dent County 065 Salem 1851 Crawford and Shannon counties James Dent, pioneering settler &&&&&&&&&&015657.&&&&&015,657 &&&&&&&&&&&&0754.&&&&&0754 sq mi
(&&&&&&&&&&&01953.&&&&&01,953 km²)
State map highlighting Dent County
Douglas County 067 Ava 1857 Ozark County Stephen A. Douglas (1813–1861), American Senator from Illinois, and the Democratic nominee for President in 1860 &&&&&&&&&&013684.&&&&&013,684 &&&&&&&&&&&&0815.&&&&&0815 sq mi
(&&&&&&&&&&&02111.&&&&&02,111 km²)
State map highlighting Douglas County
Dunklin County 069 Kennett 1843 Stoddard County Daniel Dunklin (1790–1844), fifth governor of Missouri &&&&&&&&&&031953.&&&&&031,953 &&&&&&&&&&&&0546.&&&&&0546 sq mi
(&&&&&&&&&&&01414.&&&&&01,414 km²)
State map highlighting Dunklin County
Franklin County 071 Union 1818 St. Louis County Benjamin Franklin (1706–1790), writer, publisher, orator, and one of the Founding Fathers of the United States &&&&&&&&&0101492.&&&&&0101,492 &&&&&&&&&&&&0922.&&&&&0922 sq mi
(&&&&&&&&&&&02388.&&&&&02,388 km²)
State map highlighting Franklin County
Gasconade County 073 Hermann 1821 Franklin County Gasconade River, a tributary of the Missouri River; the river probably derives its name from the French word "gascon" which means braggart, and could be an old satirical name describing those who boast about their adventures upon return to St. Louis &&&&&&&&&&015222.&&&&&015,222 &&&&&&&&&&&&0520.&&&&&0520 sq mi
(&&&&&&&&&&&01347.&&&&&01,347 km²)
State map highlighting Gasconade County
Gentry County 075 Albany 1841 Clinton County Richard Gentry (1788–1837), a distinguished American military colonel in the Seminole Wars &&&&&&&&&&&06738.&&&&&06,738 &&&&&&&&&&&&0492.&&&&&0492 sq mi
(&&&&&&&&&&&01274.&&&&&01,274 km²)
State map highlighting Gentry County
Greene County 077 Springfield 1833 Crawford and Wayne counties Nathanael Greene (1742–1786), a major general of the Continental Army in the American Revolutionary War &&&&&&&&&0275174.&&&&&0275,174 &&&&&&&&&&&&0675.&&&&&0675 sq mi
(&&&&&&&&&&&01748.&&&&&01,748 km²)
State map highlighting Greene County
Grundy County 079 Trenton 1839 Livingston County Felix Grundy (1777–1840), U.S. Congressman and U.S. Senator from Tennessee who also served as the 13th Attorney General of the United States &&&&&&&&&&010261.&&&&&010,261 &&&&&&&&&&&&0436.&&&&&0436 sq mi
(&&&&&&&&&&&01129.&&&&&01,129 km²)
State map highlighting Grundy County
Harrison County 081 Bethany 1843 Daviess County Albert G. Harrison (1800–1839), U.S. Representative from Missouri &&&&&&&&&&&08957.&&&&&08,957 &&&&&&&&&&&&0725.&&&&&0725 sq mi
(&&&&&&&&&&&01878.&&&&&01,878 km²)
State map highlighting Harrison County
Henry County 083 Clinton 1834 Lillard (now Lafayette) County Patrick Henry (1736–1799), first post-colonial Governor of Virginia and prominent figure in the American Revolution &&&&&&&&&&022272.&&&&&022,272 &&&&&&&&&&&&0702.&&&&&0702 sq mi
(&&&&&&&&&&&01818.&&&&&01,818 km²)
State map highlighting Henry County
Hickory County 085 Hermitage 1845 Benton and Polk counties Andrew Jackson (1767–1845), seventh U.S. President, who was nicknamed "Old Hickory" during his military service &&&&&&&&&&&09627.&&&&&09,627 &&&&&&&&&&&&0399.&&&&&0399 sq mi
(&&&&&&&&&&&01033.&&&&&01,033 km²)
State map highlighting Hickory County
Holt County 087 Oregon 1841 Part of the Platte Purchase David Rice Holt, Missouri State Representative &&&&&&&&&&&04912.&&&&&04,912 &&&&&&&&&&&&0462.&&&&&0462 sq mi
(&&&&&&&&&&&01197.&&&&&01,197 km²)
State map highlighting Holt County
Howard County 089 Fayette 1816 St. Charles and St. Louis counties Benjamin Howard (1760–1814), a Congressman from Kentucky, governor of Missouri Territory and a brigadier general in the War of 1812 &&&&&&&&&&010144.&&&&&010,144 &&&&&&&&&&&&0466.&&&&&0466 sq mi
(&&&&&&&&&&&01207.&&&&&01,207 km²)
State map highlighting Howard County
Howell County 091 West Plains 1857 Oregon County Disputed - Josiah Howell, pioneering settler &&&&&&&&&&040400.&&&&&040,400 &&&&&&&&&&&&0928.&&&&&0928 sq mi
(&&&&&&&&&&&02404.&&&&&02,404 km²)
State map highlighting Howell County
Iron County 093 Ironton 1857 Madison, Reynolds, St. Francois, Washington and Wayne counties The abundance of iron ore in the area &&&&&&&&&&010630.&&&&&010,630 &&&&&&&&&&&&0551.&&&&&0551 sq mi
(&&&&&&&&&&&01427.&&&&&01,427 km²)
State map highlighting Iron County
Jackson County 095 Kansas City,
Independence
1826 Lillard (now Lafayette) County Andrew Jackson (1767–1845), U.S. Senator from Tennessee and later President of the United States &&&&&&&&&0674158.&&&&&0674,158 &&&&&&&&&&&&0605.&&&&&0605 sq mi
(&&&&&&&&&&&01567.&&&&&01,567 km²)
State map highlighting Jackson County
Jasper County 097 Carthage 1841 Barry County William Jasper (c. 1750–1779), a noted American soldier in the Revolutionary War &&&&&&&&&0117404.&&&&&0117,404 &&&&&&&&&&&&0640.&&&&&0640 sq mi
(&&&&&&&&&&&01658.&&&&&01,658 km²)
State map highlighting Jasper County
Jefferson County 099 Hillsboro 1818 St. Louis and Sainte Genevieve counties Thomas Jefferson (1743–1826), third President of the United States, principal author of the Declaration of Independence, and one of the most influential Founding Fathers &&&&&&&&&0218733.&&&&&0218,733 &&&&&&&&&&&&0657.&&&&&0657 sq mi
(&&&&&&&&&&&01702.&&&&&01,702 km²)
State map highlighting Jefferson County
Johnson County 101 Warrensburg 1834 Lillard (now Lafayette) County Richard M. Johnson (1780–1850), ninth Vice President of the United States, serving in the administration of Martin Van Buren &&&&&&&&&&052595.&&&&&052,595 &&&&&&&&&&&&0831.&&&&&0831 sq mi
(&&&&&&&&&&&02152.&&&&&02,152 km²)
State map highlighting Johnson County
Knox County 103 Edina 1843 Scotland County Henry Knox (1750–1806) an American bookseller from Boston who became the chief artillery officer of the Continental Army and later the nation's first Secretary of War &&&&&&&&&&&04131.&&&&&04,131 &&&&&&&&&&&&0506.&&&&&0506 sq mi
(&&&&&&&&&&&01311.&&&&&01,311 km²)
State map highlighting Knox County
Laclede County 105 Lebanon 1849 Camden, Pulaski and Wright counties Pierre Laclede (1729–1778), founder of St. Louis, Missouri &&&&&&&&&&035571.&&&&&035,571 &&&&&&&&&&&&0766.&&&&&0766 sq mi
(&&&&&&&&&&&01984.&&&&&01,984 km²)
State map highlighting Laclede County
Lafayette County 107 Lexington 1821 Cooper County Gilbert du Motier, the Marquis de Lafayette (1757–1834), French military officer and general in the American Revolutionary War &&&&&&&&&&033381.&&&&&033,381 &&&&&&&&&&&&0629.&&&&&0629 sq mi
(&&&&&&&&&&&01629.&&&&&01,629 km²)
State map highlighting Lafayette County
Lawrence County 109 Mount Vernon 1843 Barry and Dade counties James Lawrence (1781–1813), an American naval officer best known for his last words "Don't give up the ship!" &&&&&&&&&&038634.&&&&&038,634 &&&&&&&&&&&&0613.&&&&&0613 sq mi
(&&&&&&&&&&&01588.&&&&&01,588 km²)
State map highlighting Lawrence County
Lewis County 111 Monticello 1833 Marion County Meriwether Lewis (1774–1809), explorer and governor of the Louisiana Territory &&&&&&&&&&010211.&&&&&010,211 &&&&&&&&&&&&0505.&&&&&0505 sq mi
(&&&&&&&&&&&01308.&&&&&01,308 km²)
State map highlighting Lewis County
Lincoln County 113 Troy 1818 St. Charles County Disputed; either Lincoln County, Kentucky (birthplace of Christopher Clark, a Missouri legislator who advocated for the county's creation),[7] or for Benjamin Lincoln (1733–1810), an American revolutionary war general &&&&&&&&&&052566.&&&&&052,566 &&&&&&&&&&&&0630.&&&&&0630 sq mi
(&&&&&&&&&&&01632.&&&&&01,632 km²)
State map highlighting Lincoln County
Linn County 115 Linneus 1837 Chariton County Lewis F. Linn (1796–1843), a Jacksonian Democratic U.S. Senator for Missouri &&&&&&&&&&012761.&&&&&012,761 &&&&&&&&&&&&0620.&&&&&0620 sq mi
(&&&&&&&&&&&01606.&&&&&01,606 km²)
State map highlighting Linn County
Livingston County 117 Chillicothe 1837 Carroll County Edward Livingston (1764–1836), a prominent American jurist and statesman, influential in the drafting of the Louisiana Civil Code of 1825, a civil code based largely on the Napoleonic Code &&&&&&&&&&015195.&&&&&015,195 &&&&&&&&&&&&0535.&&&&&0535 sq mi
(&&&&&&&&&&&01386.&&&&&01,386 km²)
State map highlighting Livingston County
Macon County 121 Macon 1837 Chariton and Randolph counties Nathaniel Macon (1758–1837), member of the United States House of Representatives from 1791 to 1815 who briefly served in the American Revolutionary War &&&&&&&&&&015566.&&&&&015,566 &&&&&&&&&&&&0804.&&&&&0804 sq mi
(&&&&&&&&&&&02082.&&&&&02,082 km²)
State map highlighting Macon County
Madison County 123 Fredericktown 1818 Cape Girardeau and Sainte Genevieve counties James Madison (1751–1836), politician and political philosopher who served as the fourth President of the United States, and one of the Founding Fathers of the United States &&&&&&&&&&012226.&&&&&012,226 &&&&&&&&&&&&0497.&&&&&0497 sq mi
(&&&&&&&&&&&01287.&&&&&01,287 km²)
State map highlighting Madison County
Maries County 125 Vienna 1855 Osage and Pulaski counties Maries River, possibly a corruption of the French word marais meaning "marsh" or "swamp" &&&&&&&&&&&09176.&&&&&09,176 &&&&&&&&&&&&0528.&&&&&0528 sq mi
(&&&&&&&&&&&01368.&&&&&01,368 km²)
State map highlighting Maries County
Marion County 127 Palmyra 1826 Ralls County Francis Marion (1732–1795), a military officer who served in the American Revolutionary War &&&&&&&&&&028781.&&&&&028,781 &&&&&&&&&&&&0438.&&&&&0438 sq mi
(&&&&&&&&&&&01134.&&&&&01,134 km²)
State map highlighting Marion County
McDonald County 119 Pineville 1847 Newton County Alexander McDonald, American Revolutionary War sergeant &&&&&&&&&&023083.&&&&&023,083 &&&&&&&&&&&&0540.&&&&&0540 sq mi
(&&&&&&&&&&&01399.&&&&&01,399 km²)
State map highlighting McDonald County
Mercer County 129 Princeton 1845 Grundy County John F. Mercer (1759–1821), an American lawyer, planter, and Governor of Maryland &&&&&&&&&&&03785.&&&&&03,785 &&&&&&&&&&&&0454.&&&&&0454 sq mi
(&&&&&&&&&&&01176.&&&&&01,176 km²)
State map highlighting Mercer County
Miller County 131 Tuscumbia 1837 Cole and Pulaski counties John Miller (1781–1846), an American publisher and politician from St. Louis, Missouri. He was the fourth Governor of Missouri and represented Missouri in the U.S. House &&&&&&&&&&024748.&&&&&024,748 &&&&&&&&&&&&0592.&&&&&0592 sq mi
(&&&&&&&&&&&01533.&&&&&01,533 km²)
State map highlighting Miller County
Mississippi County 133 Charleston 1842 Scott County Mississippi River, the second-longest river in the United States which forms Missouri's eastern border &&&&&&&&&&014358.&&&&&014,358 &&&&&&&&&&&&0413.&&&&&0413 sq mi
(&&&&&&&&&&&01070.&&&&&01,070 km²)
State map highlighting Mississippi County
Moniteau County 135 California 1845 Cole and Morgan counties Moniteau Creek; "moniteau" is a French spelling of manitou, the Algonquian Great Spirit &&&&&&&&&&015607.&&&&&015,607 &&&&&&&&&&&&0417.&&&&&0417 sq mi
(&&&&&&&&&&&01080.&&&&&01,080 km²)
State map highlighting Moniteau County
Monroe County 137 Paris 1831 Ralls County James Monroe (1758–1831), fifth President of the United States who crafted the Missouri Compromise &&&&&&&&&&&08840.&&&&&08,840 &&&&&&&&&&&&0646.&&&&&0646 sq mi
(&&&&&&&&&&&01673.&&&&&01,673 km²)
State map highlighting Monroe County
Montgomery County 139 Montgomery City 1818 St. Charles County Richard Montgomery (1738–1775), an Irish-born soldier who first served in the British Army and later became a brigadier-general in the Continental Army during the Revolutionary War &&&&&&&&&&012236.&&&&&012,236 &&&&&&&&&&&&0539.&&&&&0539 sq mi
(&&&&&&&&&&&01396.&&&&&01,396 km²)
State map highlighting Montgomery County
Morgan County 141 Versailles 1833 Cooper County Daniel Morgan (c. 1736–1802), American pioneer, soldier, and United States Representative from Virginia &&&&&&&&&&020565.&&&&&020,565 &&&&&&&&&&&&0598.&&&&&0598 sq mi
(&&&&&&&&&&&01549.&&&&&01,549 km²)
State map highlighting Morgan County
New Madrid County 143 New Madrid 1812 One of the five original counties Madrid, Spain &&&&&&&&&&018956.&&&&&018,956 &&&&&&&&&&&&0678.&&&&&0678 sq mi
(&&&&&&&&&&&01756.&&&&&01,756 km²)
State map highlighting New Madrid County
Newton County 145 Neosho 1838 Barry County John Newton (1755–1780), legendary soldier of the American Revolution &&&&&&&&&&058114.&&&&&058,114 &&&&&&&&&&&&0626.&&&&&0626 sq mi
(&&&&&&&&&&&01621.&&&&&01,621 km²)
State map highlighting Newton County
Nodaway County 147 Maryville 1843 Andrew County, the Platte Purchase Nodaway River, a 120-mile (190 km) long river in southwest Iowa and northwest Missouri &&&&&&&&&&023370.&&&&&023,370 &&&&&&&&&&&&0877.&&&&&0877 sq mi
(&&&&&&&&&&&02271.&&&&&02,271 km²)
State map highlighting Nodaway County
Oregon County 149 Alton 1841 Ripley County Oregon Territory &&&&&&&&&&010881.&&&&&010,881 &&&&&&&&&&&&0792.&&&&&0792 sq mi
(&&&&&&&&&&&02051.&&&&&02,051 km²)
State map highlighting Oregon County
Osage County 151 Linn 1841 Gasconade County Osage River, a 360 miles (580 km) long tributary of the Missouri River in central Missouri; the name of the river is probably derived from a French corruption of "Washazhe" – the name of the Osage Native Americans &&&&&&&&&&013878.&&&&&013,878 &&&&&&&&&&&&0606.&&&&&0606 sq mi
(&&&&&&&&&&&01570.&&&&&01,570 km²)
State map highlighting Osage County
Ozark County 153 Gainesville 1841 Taney County Ozark Mountains – Ozark is the anglicized form of the French "aux arcs", an abbreviation of "Aux Arkansas", which means in the county of Arkansas &&&&&&&&&&&09723.&&&&&09,723 &&&&&&&&&&&&0747.&&&&&0747 sq mi
(&&&&&&&&&&&01935.&&&&&01,935 km²)
State map highlighting Ozark County
Pemiscot County 155 Caruthersville 1851 New Madrid County An American Indian word meaning "liquid mud" &&&&&&&&&&018296.&&&&&018,296 &&&&&&&&&&&&0493.&&&&&0493 sq mi
(&&&&&&&&&&&01277.&&&&&01,277 km²)
State map highlighting Pemiscot County
Perry County 157 Perryville 1821 Sainte Geneviere County Oliver Hazard Perry (1785–1819), naval officer in the War of 1812 against Britain, earned the title "Hero of Lake Erie" for leading American forces in a decisive naval victory at the Battle of Lake Erie &&&&&&&&&&018971.&&&&&018,971 &&&&&&&&&&&&0475.&&&&&0475 sq mi
(&&&&&&&&&&&01230.&&&&&01,230 km²)
State map highlighting Perry County
Pettis County 159 Sedalia 1833 Cooper and Saline counties Spencer Darwin Pettis (1802–1831), U.S. Representative from Missouri &&&&&&&&&&042201.&&&&&042,201 &&&&&&&&&&&&0685.&&&&&0685 sq mi
(&&&&&&&&&&&01774.&&&&&01,774 km²)
State map highlighting Pettis County
Phelps County 161 Rolla 1857 Crawford County John S. Phelps (1814–1886), a politician, soldier during the American Civil War, and twenty-third Governor of Missouri &&&&&&&&&&045156.&&&&&045,156 &&&&&&&&&&&&0673.&&&&&0673 sq mi
(&&&&&&&&&&&01743.&&&&&01,743 km²)
State map highlighting Phelps County
Pike County 163 Bowling Green 1818 St. Charles County Zebulon Pike (1778–1813), American soldier and explorer for whom Pikes Peak in Colorado is also named &&&&&&&&&&018516.&&&&&018,516 &&&&&&&&&&&&0673.&&&&&0673 sq mi
(&&&&&&&&&&&01743.&&&&&01,743 km²)
State map highlighting Pike County
Platte County 165 Platte City 1838 Part of the Platte Purchase Platte River, a tributary of the Missouri River, which is in turn named for the French word "platte" meaning flat or shallow &&&&&&&&&&089322.&&&&&089,322 &&&&&&&&&&&&0420.&&&&&0420 sq mi
(&&&&&&&&&&&01088.&&&&&01,088 km²)
State map highlighting Platte County
Polk County 167 Bolivar 1835 Greene County James K. Polk (1795–1849), 11th President of the United States &&&&&&&&&&031137.&&&&&031,137 &&&&&&&&&&&&0637.&&&&&0637 sq mi
(&&&&&&&&&&&01650.&&&&&01,650 km²)
State map highlighting Polk County
Pulaski County 169 Waynesville 1833 Crawford County Kazimierz Pulaski (1745–1779), Polish soldier of fortune in the American Revolutionary War, he saved the life of George Washington and became a general in the Continental Army &&&&&&&&&&052274.&&&&&052,274 &&&&&&&&&&&&0547.&&&&&0547 sq mi
(&&&&&&&&&&&01417.&&&&&01,417 km²)
State map highlighting Pulaski County
Putnam County 171 Unionville 1843 Adair and Sullivan counties Israel Putnam (1718–1790), an American army general who fought with distinction at the Battle of Bunker Hill during the American Revolutionary War &&&&&&&&&&&04979.&&&&&04,979 &&&&&&&&&&&&0518.&&&&&0518 sq mi
(&&&&&&&&&&&01342.&&&&&01,342 km²)
State map highlighting Putnam County
Ralls County 173 New London 1821 Pike County Daniel Ralls, a Missouri State Representative &&&&&&&&&&010167.&&&&&010,167 &&&&&&&&&&&&0471.&&&&&0471 sq mi
(&&&&&&&&&&&01220.&&&&&01,220 km²)
State map highlighting Ralls County
Randolph County 175 Huntsville 1829 Chariton and Ralls counties John Randolph of Roanoke (1773–1833), a leader in Congress from Virginia and spokesman for the "Old Republican" &&&&&&&&&&025414.&&&&&025,414 &&&&&&&&&&&&0482.&&&&&0482 sq mi
(&&&&&&&&&&&01248.&&&&&01,248 km²)
State map highlighting Randolph County
Ray County 177 Richmond 1820 Howard County John Ray, Missouri State Representative &&&&&&&&&&023494.&&&&&023,494 &&&&&&&&&&&&0570.&&&&&0570 sq mi
(&&&&&&&&&&&01476.&&&&&01,476 km²)
State map highlighting Ray County
Reynolds County 179 Centerville 1845 Shannon County Thomas Reynolds (1796–1844), governor of Missouri from 1840 to 1844 &&&&&&&&&&&06696.&&&&&06,696 &&&&&&&&&&&&0811.&&&&&0811 sq mi
(&&&&&&&&&&&02100.&&&&&02,100 km²)
State map highlighting Reynolds County
Ripley County 181 Doniphan 1831 Wayne County Eleazer Wheelock Ripley (1782–1839), Brigadier General in the War of 1812 &&&&&&&&&&014100.&&&&&014,100 &&&&&&&&&&&&0630.&&&&&0630 sq mi
(&&&&&&&&&&&01632.&&&&&01,632 km²)
State map highlighting Ripley County
St. Charles County 183 Saint Charles 1812 One of the five original counties St. Charles Borromeo (1538–1584), an Italian saint and cardinal of the Roman Catholic Church &&&&&&&&&0360485.&&&&&0360,485 &&&&&&&&&&&&0561.&&&&&0561 sq mi
(&&&&&&&&&&&01453.&&&&&01,453 km²)
State map highlighting St. Charles County
St. Clair County 185 Osceola 1841 Rives (now Henry) County Arthur St. Clair (1737–1818), an American soldier and Governor of the Northwest Territory &&&&&&&&&&&09805.&&&&&09,805 &&&&&&&&&&&&0677.&&&&&0677 sq mi
(&&&&&&&&&&&01753.&&&&&01,753 km²)
State map highlighting St. Clair County
St. Francois County 187 Farmington 1821 Jefferson, Sainte Genevieve and Washington counties St. Francis of Assisi (c. 1182–1226), a Catholic deacon and the founder of the Order of Friars Minor, more commonly known as the Franciscans &&&&&&&&&&065359.&&&&&065,359 &&&&&&&&&&&&0450.&&&&&0450 sq mi
(&&&&&&&&&&&01165.&&&&&01,165 km²)
St. Louis County 189 Clayton 1812 One of the five original counties King Louis IX (1214–1270), King of France from 1226 until his death &&&&&&&&&0998954.&&&&&0998,954 &&&&&&&&&&&&0508.&&&&&0508 sq mi
(&&&&&&&&&&&01316.&&&&&01,316 km²)
Saint Louis City 510 St. Louis 1876 Created in 1876 when city residents voted to secede from St. Louis County King Louis IX (1214–1270), King of France from 1226 until his death &&&&&&&&&0319294.&&&&&0319,294 &&&&&&&&&&&&&061.90000061.9 sq mi
(&&&&&&&&&&&&0160.&&&&&0160 km²)
State map highlighting Saint Louis City
Sainte Genevieve County 186 Sainte Genevieve 1812 One of the five original counties St. Genevieve (c. 420 – c. 510), the patron saint of Paris in Roman Catholic and Eastern Orthodox tradition &&&&&&&&&&018145.&&&&&018,145 &&&&&&&&&&&&0502.&&&&&0502 sq mi
(&&&&&&&&&&&01300.&&&&&01,300 km²)
State map highlighting Sainte Genevieve County
Saline County 195 Marshall 1820 Cooper County Local hot springs &&&&&&&&&&023370.&&&&&023,370 &&&&&&&&&&&&0756.&&&&&0756 sq mi
(&&&&&&&&&&&01958.&&&&&01,958 km²)
State map highlighting Saline County
Schuyler County 197 Lancaster 1843 Adair County Philip Schuyler (1733–1804), a general in the American Revolution and a United States Senator from New York &&&&&&&&&&&04431.&&&&&04,431 &&&&&&&&&&&&0308.&&&&&0308 sq mi
(&&&&&&&&&&&&0798.&&&&&0798 km²)
State map highlighting Schuyler County
Scotland County 199 Memphis 1841 Clark, Lewis, and Shelby counties Scotland (country) &&&&&&&&&&&04843.&&&&&04,843 &&&&&&&&&&&&0438.&&&&&0438 sq mi
(&&&&&&&&&&&01134.&&&&&01,134 km²)
State map highlighting Scotland County
Scott County 201 Benton 1822 New Madrid County John Guier Scott (1819–1892), a U.S. Representative from Missouri &&&&&&&&&&039191.&&&&&039,191 &&&&&&&&&&&&0421.&&&&&0421 sq mi
(&&&&&&&&&&&01090.&&&&&01,090 km²)
State map highlighting Scott County
Shannon County 203 Eminence 1837 Ripley County George Shannon (1785–1836), member of the Lewis and Clark Expedition &&&&&&&&&&&08441.&&&&&08,441 &&&&&&&&&&&01004.&&&&&01,004 sq mi
(&&&&&&&&&&&02600.&&&&&02,600 km²)
State map highlighting Shannon County
Shelby County 205 Shelbyville 1835 Marion County Isaac Shelby (1750–1826), the first and fifth Governor of the U.S. state of Kentucky &&&&&&&&&&&06373.&&&&&06,373 &&&&&&&&&&&&0501.&&&&&0501 sq mi
(&&&&&&&&&&&01298.&&&&&01,298 km²)
State map highlighting Shelby County
Stoddard County 207 Bloomfield 1835 New Madrid County Amos Stoddard (1762–1813), the only commandant of Upper Louisiana for the French Republic and the only commandant for the District of Louisiana for the United States in 1804 during the handover of the Louisiana Purchase &&&&&&&&&&029968.&&&&&029,968 &&&&&&&&&&&&0827.&&&&&0827 sq mi
(&&&&&&&&&&&02142.&&&&&02,142 km²)
State map highlighting Stoddard County
Stone County 209 Galena 1851 Taney County William Stone, first elected judge of Taney County &&&&&&&&&&032202.&&&&&032,202 &&&&&&&&&&&&0463.&&&&&0463 sq mi
(&&&&&&&&&&&01199.&&&&&01,199 km²)
State map highlighting Stone County
Sullivan County 211 Milan 1843 Linn County John Sullivan (1740–1795), American Revolutionary War general &&&&&&&&&&&06714.&&&&&06,714 &&&&&&&&&&&&0651.&&&&&0651 sq mi
(&&&&&&&&&&&01686.&&&&&01,686 km²)
State map highlighting Sullivan County
Taney County 213 Forsyth 1837 Greene County Roger Brooke Taney (1777–1864), eleventh United States Attorney General and fifth Chief Justice of the United States &&&&&&&&&&051675.&&&&&051,675 &&&&&&&&&&&&0632.&&&&&0632 sq mi
(&&&&&&&&&&&01637.&&&&&01,637 km²)
State map highlighting Taney County
Texas County 215 Houston 1843 Shannon and Wright counties Republic of Texas &&&&&&&&&&026008.&&&&&026,008 &&&&&&&&&&&01179.&&&&&01,179 sq mi
(&&&&&&&&&&&03054.&&&&&03,054 km²)
State map highlighting Texas County
Vernon County 217 Nevada 1851 Bates County Miles Vernon, Missouri State Senator – the county was originally defined as having the same boundaries as Bates county, but was later declared unconstitutional and changed &&&&&&&&&&021159.&&&&&021,159 &&&&&&&&&&&&0834.&&&&&0834 sq mi
(&&&&&&&&&&&02160.&&&&&02,160 km²)
State map highlighting Vernon County
Warren County 219 Warrenton 1833 Montgomery County Joseph Warren (1741–1775), Revolutionary War doctor and general &&&&&&&&&&032513.&&&&&032,513 &&&&&&&&&&&&0432.&&&&&0432 sq mi
(&&&&&&&&&&&01119.&&&&&01,119 km²)
State map highlighting Warren County
Washington County 221 Potosi 1813 Sainte Genevieve County George Washington (1732–1799), commander of the Continental Army in the American Revolutionary War and first President of the United States &&&&&&&&&&025195.&&&&&025,195 &&&&&&&&&&&&0760.&&&&&0760 sq mi
(&&&&&&&&&&&01968.&&&&&01,968 km²)
State map highlighting Washington County
Wayne County 223 Greenville 1818 Cape Girardeau and Lawrence counties Anthony Wayne (1745–1796), United States Army general and statesman &&&&&&&&&&013521.&&&&&013,521 &&&&&&&&&&&&0761.&&&&&0761 sq mi
(&&&&&&&&&&&01971.&&&&&01,971 km²)
State map highlighting Wayne County
Webster County 225 Marshfield 1855 Greene County Daniel Webster (1782–1852), U.S. Secretary of State and Senator from Massachusetts &&&&&&&&&&036202.&&&&&036,202 &&&&&&&&&&&&0593.&&&&&0593 sq mi
(&&&&&&&&&&&01536.&&&&&01,536 km²)
State map highlighting Webster County
Worth County 227 Grant City 1861 Gentry County William J. Worth (1794–1849), a United States general during the Mexican-American War &&&&&&&&&&&02171.&&&&&02,171 &&&&&&&&&&&&0266.&&&&&0266 sq mi
(&&&&&&&&&&&&0689.&&&&&0689 km²)
State map highlighting Worth County
Wright County 229 Hartville 1841 Pulaski County Silas Wright (1795–1847), an American Democratic politician and Governor of New York &&&&&&&&&&018815.&&&&&018,815 &&&&&&&&&&&&0682.&&&&&0682 sq mi
(&&&&&&&&&&&01766.&&&&&01,766 km²)
State map highlighting Wright County

Former county names[change | change source]

County[8] Meaning of name[8][6] Changed to[8]
Allen County
Unknown
Atchison County in 1845
Ashley County William Henry Ashley (1778–1838), early settler Texas County in 1845 upon organization
Decatur County Stephen Decatur (1779–1820), American naval officer[9] Ozark County in 1845
Highland County
Unknown
Sullivan County in 1845 upon organization
Kinderhook County Kinderhook, New York, birthplace of Martin Van Buren Camden County in 1843
Lillard County James Lillard of Tennessee, who served in the first state legislature of Missouri Lafayette County in 1825
Niangua County Niangua River, a tributary of the Osage River – "niangua" comes from the Native American word nehemgar, which means "a river of numerous springs or sources"[10] Dallas County in 1844 because of the difficulty in pronouncing and spelling Niangua
Seneca County Seneca Nation, a group of Native Americans from New York McDonald County in 1847 upon organization
Van Buren County Martin Van Buren (1782–1862), eighth President of the United States and also Vice President under Andrew Jackson Cass County in 1849 in honor of Van Buren's opponent in the presidential election of 1848

References[change | change source]

  1. "County Government Links". Missouri State Government Web. http://www.mo.gov/mo/county.htm. Retrieved October 10, 2009.[dead link]
  2. "About St. Louis: Government". City of St. Louis. http://stlouis.missouri.org/about/government.html. Retrieved October 12, 2009.
  3. "EPA County FIPS Code Listing". EPA. http://www.epa.gov/enviro/html/codes/mo.html. Retrieved 2007-04-09.
  4. 4.0 4.1 4.2 "NACo - Find a county". National Association of Counties. http://www.naco.org/Template.cfm?Section=Find_a_County&Template=/cffiles/counties/state.cfm&state.cfm&statecode=MO. Retrieved September 17, 2009.[dead link]
  5. Beatty, Michael (2001). County Name Origins of the United States. McFarland Press. ISBN 978-0-7864-1025-5 .
  6. 6.0 6.1 Coulet du Gard, René; Coulet Western, Dominique (1981). The Handbook of American Counties, Parishes and Independent Cities. Editions des Deux Mondes. ISBN 978-0-939586-00-4 .
  7. Howard Louis Conard (1901). Encyclopedia of the history of Missouri. p. 68.
  8. 8.0 8.1 8.2 "What are the Origins of Missouri Counties?". Missouri State Government Web. http://www.sos.mo.gov/archives/history/counties.asp. Retrieved September 17, 2009.
  9. Stevens, Walter B. (1921). Centennial history of Missouri (The Center State) One Hundred Years in the Union 1820-1921. Chicago: Clarke Pub. Co. p. 72.
  10. Stevens, Walter B. (1921). Centennial history of Missouri (The Center State) One Hundred Years in the Union 1820-1921. Chicago: Clarke Pub. Co. p. 73.