Jefferson County, Montana

Coordinates: 46°11′N 112°07′W / 46.18°N 112.11°W / 46.18; -112.11
From Simple English Wikipedia, the free encyclopedia
Jefferson County
Jefferson County Courthouse in Boulder
Jefferson County Courthouse in Boulder
Map of Montana highlighting Jefferson County
Location within the U.S. state of Montana
Map of the United States highlighting Montana
Montana's location within the U.S.
Coordinates: 46°11′N 112°07′W / 46.18°N 112.11°W / 46.18; -112.11
Country United States
State Montana
FoundedFebruary 2, 1865[1]
Named forThomas Jefferson
Largest townClancy
 • Total1,659 sq mi (4,300 km2)
 • Land1,656 sq mi (4,290 km2)
 • Water2.6 sq mi (7 km2)  0.2%
 • Total12,085
 • Density7/sq mi (3/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional district2nd
  • Montana county number 51

Jefferson County is a county found in the U.S. state of Montana. As of the 2020 United States Census, there were 12,085 people.[2] Its county seat is Boulder.[3] The county was created in 1865[4] and named after Thomas Jefferson,[5] the 3rd President of the United States (1801–1809).

References[change | change source]

  1. "Montana County Formation Table". Retrieved April 3, 2018.
  2. "QuickFacts: Jefferson County, Montana". United States Census Bureau. Retrieved January 4, 2024.
  3. "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  4. "Montana Place Names Companion". Montana Place Names From Alzada to Zortman. Montana Historical Society Research Center. Retrieved December 1, 2014.
  5. Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 168.