Oneida County's 2026 population is estimated at 38,147, reflecting a -0.04% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Oneida County is the 39th largest county in Wisconsin. The 2010 population was 35,949 and has grown 6.11% since 2010.
Data after 2023 is projected based on recent change
Overall: 52.7 years
Female: 53.8 years
Male: 51.5 years
There are 31,791 adults, (10,800 of whom are seniors) in Oneida County.
Female: 18,866 (49.4%)
Male: 19,301 (50.6%)
The racial composition of Oneida County includes 93.79% White, and smaller percentages for Native American, Black or African American, other race, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 35,797 | 93.79% |
| Two or more races | 1,502 | 3.94% |
| Native American | 302 | 0.79% |
| Black or African American | 196 | 0.51% |
| Other race | 183 | 0.48% |
| Asian | 178 | 0.47% |
| Native Hawaiian or Pacific Islander | 9 | 0.02% |
Oneida County 's average per capita income is $46,281. Household income levels show a median of $69,371. The poverty rate stands at 8.55%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $99,418 | - |
| Families | $90,615 | $114,328 |
| Households | $69,371 | $91,420 |
| Non Families | $37,394 | $53,276 |
Average Income
Median Household Income
Poverty Rate