Kewaunee County's 2026 population is estimated at 20,787, reflecting a 0.09% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Kewaunee County is the 52nd largest county in Wisconsin. The 2010 population was 20,561 and has grown 1.1% since 2010.
Data after 2023 is projected based on recent change
Overall: 44.6 years
Female: 45.4 years
Male: 43.9 years
There are 16,356 adults, (4,582 of whom are seniors) in Kewaunee County.
Female: 10,115 (48.9%)
Male: 10,549 (51.1%)
The racial composition of Kewaunee County includes 92.62% White, and smaller percentages for other race, Asian, Black or African American, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 19,138 | 92.62% |
| Two or more races | 877 | 4.24% |
| Other race | 347 | 1.68% |
| Asian | 160 | 0.77% |
| Black or African American | 84 | 0.41% |
| Native American | 58 | 0.28% |
Kewaunee County 's average per capita income is $50,386. Household income levels show a median of $82,725. The poverty rate stands at 7.57%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $104,012 | - |
| Families | $96,833 | $113,282 |
| Households | $82,725 | $98,858 |
| Non Families | $48,004 | $60,083 |
Average Income
Median Household Income
Poverty Rate
