Niobrara County's 2026 population is estimated at 2,249, reflecting a -1.14% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Niobrara County is the 23rd largest county in Wyoming. The 2010 population was 2,491 and has grown -9.71% since 2010.
Data after 2023 is projected based on recent change
Overall: 54.9 years
Female: 55.1 years
Male: 54.7 years
There are 2,120 adults, (781 of whom are seniors) in Niobrara County.
Female: 1,310 (55.3%)
Male: 1,058 (44.7%)
The racial composition of Niobrara County includes 91.93% White, 3.46% Black or African American, and smaller percentages for Native American, Two or more races, other race, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 2,177 | 91.93% |
| Black or African American | 82 | 3.46% |
| Native American | 57 | 2.41% |
| Two or more races | 45 | 1.9% |
| Other race | 6 | 0.25% |
| Native Hawaiian or Pacific Islander | 1 | 0.04% |
Niobrara County 's average per capita income is $46,467. Household income levels show a median of $64,113. The poverty rate stands at 12.02%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $110,518 | - |
| Families | $92,409 | $108,116 |
| Households | $64,113 | $79,260 |
| Non Families | $50,558 | $49,256 |
Average Income
Median Household Income
Poverty Rate
