Big Horn County's estimated 2026 population is 12,657 with a growth rate of -0.74% in the past year according to the most recent United States census data. Big Horn County is the 16th largest county in Montana. The 2010 population was 12,912 and has seen a growth of -1.97% since that time.
Data after 2023 is projected based on recent change
Overall: 31.9 years
Female: 32.9 years
Male: 31.2 years
There are 8,850 adults, (1,814 of whom are seniors) in Big Horn County.
Female: 6,556 (50.9%)
Male: 6,335 (49.1%)
The racial composition of Big Horn County includes 66.77% Native American, 29.87% White, and smaller percentages for Two or more races, Black or African American, Asian, other race and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| Native American | 8,607 | 66.77% |
| White | 3,851 | 29.87% |
| Two or more races | 360 | 2.79% |
| Black or African American | 34 | 0.26% |
| Asian | 25 | 0.19% |
| Other race | 14 | 0.11% |
Big Horn County's average per capita income is $35,529. Household income levels show a median of $58,750. The poverty rate stands at 22.08%.
Name | Median | Mean |
|---|---|---|
| Married Families | $72,368 | - |
| Families | $64,336 | $87,041 |
| Households | $58,750 | $73,453 |
| Non Families | $30,354 | $40,529 |
Average Income
Median Household Income
Poverty Rate