Sauk County's 2026 population is estimated at 67,172, reflecting a 0.51% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Sauk County is the 25th largest county in Wisconsin. The 2010 population was 62,051 and has grown 8.25% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.6 years
Female: 42.3 years
Male: 41.1 years
There are 51,257 adults, (13,140 of whom are seniors) in Sauk County.
Female: 32,852 (49.8%)
Male: 33,157 (50.2%)
The racial composition of Sauk County includes 87.3% White, 3.31% other race, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 57,628 | 87.3% |
| Two or more races | 4,987 | 7.56% |
| Other race | 2,182 | 3.31% |
| Black or African American | 517 | 0.78% |
| Native American | 381 | 0.58% |
| Asian | 296 | 0.45% |
| Native Hawaiian or Pacific Islander | 18 | 0.03% |
Sauk County 's average per capita income is $51,358. Household income levels show a median of $79,541. The poverty rate stands at 8.06%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $107,988 | $125,223 |
| Families | $98,301 | $113,710 |
| Households | $79,541 | $98,005 |
| Non Families | $47,616 | $65,356 |
Average Income
Median Household Income
Poverty Rate
