Clark County's 2026 population is estimated at 34,819, reflecting a 0.03% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Clark County is the 41st largest county in Wisconsin. The 2010 population was 34,670 and has grown 0.43% since 2010.
Data after 2023 is projected based on recent change
Overall: 36.7 years
Female: 36.8 years
Male: 36.6 years
There are 24,434 adults, (5,984 of whom are seniors) in Clark County.
Female: 17,001 (48.9%)
Male: 17,738 (51.1%)
The racial composition of Clark County includes 91.22% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 31,688 | 91.22% |
| Two or more races | 2,013 | 5.79% |
| Other race | 531 | 1.53% |
| Black or African American | 299 | 0.86% |
| Asian | 136 | 0.39% |
| Native American | 69 | 0.2% |
| Native Hawaiian or Pacific Islander | 3 | 0.01% |
Clark County 's average per capita income is $45,947. Household income levels show a median of $67,400. The poverty rate stands at 12.07%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $91,261 | $111,334 |
| Families | $83,495 | $103,147 |
| Households | $67,400 | $87,875 |
| Non Families | $40,230 | $49,472 |
Average Income
Median Household Income
Poverty Rate