Clark County's 2026 population is estimated at 6,573, reflecting a -0.38% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Clark County is the 102nd largest county in Missouri. The 2010 population was 7,139 and has grown -7.93% since 2010.
Data after 2023 is projected based on recent change
Overall: 43.5 years
Female: 43.8 years
Male: 43 years
There are 5,080 adults, (1,451 of whom are seniors) in Clark County.
Female: 3,293 (49.3%)
Male: 3,382 (50.7%)
The racial composition of Clark County includes 94.89% White, and smaller percentages for Two or more races, Black or African American, other race, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 6,334 | 94.89% |
| Two or more races | 197 | 2.95% |
| Black or African American | 127 | 1.9% |
| Other race | 11 | 0.16% |
| Asian | 6 | 0.09% |
Clark County 's average per capita income is $37,231. Household income levels show a median of $51,781. The poverty rate stands at 11.2%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $74,522 | - |
| Families | $71,333 | $89,215 |
| Households | $51,781 | $71,247 |
| Non Families | $26,607 | $36,635 |
Average Income
Median Household Income
Poverty Rate
