Big Horn County , Wyoming

Big Horn County: County in northern Wyoming, United States

Big Horn County locator map
Location of Big Horn County on Wyoming map.


Big Horn County is a county located in the U.S. state of Wyoming. As of the 2010 census, the population was 11,668 and a population density of 1 people per km². After 10 years in 2020 county had an estimated population of 11,575 inhabitants. Its county seat is Basin. The county was created 124 years ago in 1896.

Map of USA WY detail map
Map of USA WY
Map of USA WY detail map


Big Horn County is located at 44°31'37"N 107°59'43"W (44.5268200, -107.9952100). It has 5 neighbors: Johnson County, Big Horn County, Carbon County, Sheridan County and Washakie County.

Big Horn County map

. See all Big Horn County cities & populated places.


Big Horn County forecast: Patchy fog after 3am. Mostly clear, with a low around 36. Southeast wind around 6 mph. more

Big Horn County Quick Facts

Population : 11,575 (2020)
Country : United States of America
State : Wyoming (United States)
Different from : Big Horn County
Area : 8162 km2
Official name : Big Horn County
Water as percent of area : 0.7%
Land as percent of area : 99.3%
Named for : Big Horn Mountains
Capital : Basin
Establishment : January 01, 1897
Time Zone : America/Denver
Local time : 07:20:42 (17th October 2021)
Density : 1 Pop. per km² as of 2020
Population growth : -0.8% (2010-2020)
Weather : 36℉ Mostly Clear then Patchy Fog 7-days weather

Big Horn County has 5 neighbours.

  • Basin


According to census records, the population of Big Horn County decreased by 0.8% in 10 years.

Year Population % Change Method
2000 11,461 - estimation process
2010 11,668 1.77% census
2011 11,722 0.46% estimation process
2012 11,758 0.31% estimation process
2013 11,936 1.49% estimation process
2014 11,853 -0.7% estimation process
2015 11,945 0.77% estimation process
2016 11,941 -0.03% estimation process
2017 11,859 -0.69% estimation process
2018 11,877 0.15% estimation process
2019 11,790 -0.74% estimation process
2020 11,575 -1.86% estimation process

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People born in Big Horn County (2)

People born in Big Horn County, including rower Monica Tranel-Michini, nurse and Native activist Susie Walking Bear Yellowtail, you can see a list of people who born in Big Horn County.

Other places with the same name (2)

Big Horn County Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Big Horn County.

City Name Population Title
Lovell 2,327 Town in Big Horn County, Wyoming, United States
Greybull 1,797 Town in Big Horn County, Wyoming
Basin 1,257 Town and county seat of Big Horn County, Wyoming, United States
Cowley 747 Town in Big Horn County, Wyoming
Byron 592 Town in Big Horn County, Wyoming, United States
Burlington 343 Town in Big Horn County, Wyoming, United States
Deaver 178 Town in Big Horn County, Utah
Frannie 156 Town of the United States
Manderson 112 Town in Big Horn County, Wyoming, United States

Wyoming Other Counties (more counties)

County Name Population Title
Laramie County 100,595 County in the southeastern corner of Wyoming, United States
Natrona County 80,815 County in Wyoming, United States
Cheyenne 64,742 Capital of Wyoming, United States and seat of Laramie County
Casper 58,498 City in and county seat of Natrona County, Wyoming, United States
Campbell County 46,676 County in northeastern Wyoming, United States
Sweetwater County 42,673 County in Wyoming, United States
Fremont County 39,317 County in western Wyoming, United States
Albany County 38,950 County in Wyoming, United States
Laramie 32,661 City in and county seat of Albany County, Wyoming, United States
Gillette 32,220 City in Campbell County, Wyoming, United States
Sheridan County 30,863 County in Wyoming, United States
Park County 29,331 County in Colorado, United States
Teton County 23,497 County in Wyoming, United States
Rock Springs 22,943 City in Sweetwater County, Wyoming, United States
Lincoln County 20,253 County in Wyoming, United States
Uinta County 20,215 County in Wyoming, United States