Big Horn County, Wyoming Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 15th-largest in Wyoming
The population of Big Horn County, Wyoming is 11,737 as of the 2023 American Community Survey, making it the 15th-largest county in Wyoming. The median household income is $60,547, the median home value is $198,200, and the median age is 41.5.
The population of Big Horn County has grown 3.6% since 2010 (11,665 → 12,084), a +0.25% annualized rate.
11,737
Population
+0.25%
Annual growth
4
People / sq mi
$60,547
Median Income
$198,200
Median Home Value
Big Horn County covers 3,137 sq mi of land at 3.7 people per square mile.
About Big Horn County, WY
What distinguishes Big Horn County is density: among the most sparsely settled of US counties, around 4 people per square mile. With 11,737 residents, Big Horn County is a county in Wyoming. It ranks #15 among counties in Wyoming by population.
Median household income is $60,547, below the US median of $78,538. About 8.7% of residents live below the federal poverty level, below the national 12.4%. Median home value is $198,200, with typical rent around $876.
Roughly 20.9% of adults have a bachelor’s, below the national 35.0%. Remote work is below the national 14.0% at 8.6%, and the average commute runs about 19 minutes each way.
Big Horn County Population History (2010-2024)
The county of Big Horn County had a population of 11,665 in 2010 and 12,084 in 2024, a 3.6% growth over 14 years. The peak was 12,084 in 2024. Average annual growth rate: 0.26%.
12,084
Population (2024)
11,665
Population (2010)
12,084
Peak (2024)
0.26%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 11,665 |
| 2011 | 11,723 |
| 2012 | 11,761 |
| 2013 | 11,941 |
| 2014 | 11,864 |
| 2015 | 11,965 |
| 2016 | 11,949 |
| 2017 | 11,888 |
| 2018 | 11,887 |
| 2019 | 11,746 |
| 2020 | 11,479 |
| 2021 | 11,641 |
| 2022 | 11,876 |
| 2023 | 12,061 |
| 2024 | 12,084 |
Race & Ethnicity
| White | 89.0% |
| Black or African American | 0.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.3% |
| Two or More Races | 0.0% |
Age & Sex
41.5
Median Age
48.7%
Female
51.3%
Male
21.5%
Age 65+
Age Distribution
Children (under 15): 19.8% · Seniors (65+): 21.5%
Income & Poverty
| Median household income | $60,547$-14,268 vs state |
| Mean household income | $77,224 |
| Per-capita income | $31,066 |
| Poverty rate | 8.7%+1.6% vs state |
| Unemployment rate | 3.0% |
| Employment-to-population | 56.0% |
Top Industries by Employment
The largest employment sector in Big Horn County is professional & business services, accounting for 25.0% of workers.
How residents commute
0.5%
Drive alone
3.2%
Carpool
76.5%
Public transit
8.6%
Work from home
18.5 min
Avg commute
Housing
$198,200$-86,900 vs state
Median home value
$876
Median rent
77.2%
Homeownership rate
5,370
Total housing units
81.1%
Occupied
18.9%
Vacant
22.8%
Renter-occupied
Social & access
85.4%
With health insurance
92.7%
With broadband internet
42.4%
Foreign-born
9.2%
Veterans (18+)
16.9%
With a disability
92.9%
Speak language other than English at home
Education
88.0%
High School+
20.9%
Bachelor's+
Largest cities in Wyoming
Other counties in Wyoming
Part of Wyoming
Metro areas in Wyoming
County rankings
Frequently Asked Questions
Big Horn County, Wyoming has a population of 11,737 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 15th-largest county in Wyoming. Population density is 4 people per square mile.
The population of Big Horn County has grown 3.6% since 2010 (11,665 → 12,084), a +0.25% annualized rate.
The median household income in Big Horn County, Wyoming is $60,547, with mean (average) household income of $77,224 and per-capita income of $31,066. 8.7% of residents live below the federal poverty level.
In Big Horn County, the largest racial and ethnic groups are White (89.0%), Hispanic or Latino (2.3%), Black or African American (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Big Horn County, Wyoming is 41.5 years. Residents are 48.7% female and 51.3% male.
The median home value in Big Horn County is $198,200 and median monthly rent is $876. 77.2% of occupied housing units are owner-occupied. The county has 5,370 total housing units, 18.9% of which are vacant.
The largest employment sector in Big Horn County, Wyoming is professional, scientific, and management services, employing 25.0% of workers. The unemployment rate is 3.0%.
Cheyenne is among the largest cities associated with Big Horn County, Wyoming, with a population of 64,976.
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Statewide data for Wyoming
Population, race, income, age, and trends across Wyoming
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.