Clay County's 2026 population is estimated at 19,460, reflecting a -0.34% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Clay County is the 63rd largest county in Kentucky. The 2010 population was 21,668 and has grown -10.19% since 2010.
Data after 2023 is projected based on recent change
Overall: 40.2 years
Female: 41.4 years
Male: 39.2 years
There are 15,825 adults, (3,180 of whom are seniors) in Clay County.
Female: 9,516 (47.8%)
Male: 10,405 (52.2%)
The racial composition of Clay County includes 92.18% White, 3.97% Black or African American, and smaller percentages for other race, Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 18,364 | 92.18% |
| Black or African American | 790 | 3.97% |
| Two or more races | 646 | 3.24% |
| Other race | 69 | 0.35% |
| Asian | 38 | 0.19% |
| Native American | 14 | 0.07% |
Clay County 's average per capita income is $38,088. Household income levels show a median of $40,900. The poverty rate stands at 32.35%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $60,637 | - |
| Families | $47,806 | $61,147 |
| Households | $40,900 | $55,251 |
| Non Families | $17,211 | $34,199 |
Average Income
Median Household Income
Poverty Rate