Clay County's 2026 population is estimated at 67,694, reflecting a 0.63% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Clay County is the 16th largest county in Minnesota. The 2010 population was 59,144 and has grown 14.46% since 2010.
Data after 2023 is projected based on recent change
Overall: 33.7 years
Female: 33.9 years
Male: 33.5 years
There are 49,744 adults, (9,248 of whom are seniors) in Clay County.
Female: 33,208 (50.3%)
Male: 32,851 (49.7%)
The racial composition of Clay County includes 84.91% White, 4.87% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 56,092 | 84.91% |
| Two or more races | 4,407 | 6.67% |
| Black or African American | 3,217 | 4.87% |
| Asian | 1,059 | 1.6% |
| Other race | 689 | 1.04% |
| Native American | 551 | 0.83% |
| Native Hawaiian or Pacific Islander | 44 | 0.07% |
Clay County 's average per capita income is $55,212. Household income levels show a median of $81,172. The poverty rate stands at 13.26%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $124,605 | $145,770 |
| Families | $108,316 | $127,036 |
| Households | $81,172 | $99,798 |
| Non Families | $39,601 | $53,539 |
Average Income
Median Household Income
Poverty Rate
