Sheridan County's 2026 population is estimated at 33,772, reflecting a 1.19% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Sheridan County is the 7th largest county in Wyoming. The 2010 population was 29,148 and has grown 15.86% since 2010.
Data after 2023 is projected based on recent change
Overall: 42.7 years
Female: 42.9 years
Male: 42.5 years
There are 25,216 adults, (7,180 of whom are seniors) in Sheridan County.
Female: 15,980 (49.9%)
Male: 16,075 (50.1%)
The racial composition of Sheridan County includes 91.2% White, and smaller percentages for other race, Asian, Native American, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 29,234 | 91.2% |
| Two or more races | 1,246 | 3.89% |
| Other race | 754 | 2.35% |
| Asian | 318 | 0.99% |
| Native American | 282 | 0.88% |
| Black or African American | 221 | 0.69% |
Sheridan County 's average per capita income is $47,119. Household income levels show a median of $71,388. The poverty rate stands at 10.23%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $104,621 | - |
| Families | $94,992 | $117,646 |
| Households | $71,388 | $91,947 |
| Non Families | $39,179 | $49,676 |
Average Income
Median Household Income
Poverty Rate
