Petroleum County, Montana

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Petroleum County
Petroleum County Courthouse in Winnett
Petroleum County Courthouse in Winnett
Map of Montana highlighting Petroleum County
Location within the U.S. state of Montana
Map of the United States highlighting Montana
Montana's location within the U.S.
Coordinates: 47°07′N 108°16′W / 47.11°N 108.26°W / 47.11; -108.26
Country United States
State Montana
FoundedFebruary 25, 1925
Named forPetroleum fields
Largest townWinnett
 • Total1,674 sq mi (4,340 km2)
 • Land1,655 sq mi (4,290 km2)
 • Water19 sq mi (50 km2)  1.1%
 • Total496
 • Density0.30/sq mi (0.11/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional district2nd
  • Montana county number 55

Petroleum County is a county found in the U.S. state of Montana. As of the 2020 United States Census, 496 people lived there,[1] making it the least populous county in Montana and the eighth-least populous in the United States.[2] Its county seat is Winnett.[3] The county's area was split from Fergus County to become the last of Montana's 56 counties to be organized.[4][5]

References[change | change source]

  1. "QuickFacts: Petroleum County, Montana". United States Census Bureau. Retrieved January 5, 2024.
  2. "Top 10: Least Populous Counties, During the Period of 2005-2009". PolicyMap. February 28, 2011. Archived from the original on May 31, 2016. Retrieved July 7, 2013.
  3. "Find a County". National Association of Counties. Retrieved June 7, 2011.
  4. Ellie Arguimbau; Ellen Baumler; Charlene L. Porsild; Brian Shovers (2009). Montana Place Names: From Alzada to Zortman. Montana Historical Society. p. 204. ISBN 978-0-9759196-1-3.
  5. Soils Industry, pp. 1-2