Geary County's 2026 population is estimated at 37,211, reflecting a 2.4% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Geary County is the 13th largest county in Kansas. The 2010 population was 35,241 and has grown 5.59% since 2010.
Overall: 27.1 years
Female: 27.5 years
Male: 26.7 years
There are 24,442 adults, (3,109 of whom are seniors) in Geary County.
Female: 17,035 (47.6%)
Male: 18,780 (52.4%)
The racial composition of Geary County includes 59.15% White, 14.62% Black or African American, 4.7% other race, 3.1% Asian, and smaller percentages for Native Hawaiian or Pacific Islander, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 21,186 | 59.15% |
| Two or more races | 5,969 | 16.67% |
| Black or African American | 5,237 | 14.62% |
| Other race | 1,682 | 4.7% |
| Asian | 1,110 | 3.1% |
| Native Hawaiian or Pacific Islander | 390 | 1.09% |
| Native American | 241 | 0.67% |
Geary County 's average per capita income is $42,184. Household income levels show a median of $59,317. The poverty rate stands at 18.01%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $82,909 | - |
| Families | $70,488 | $80,194 |
| Households | $59,317 | $70,877 |
| Non Families | $42,877 | $48,966 |
Average Income
Median Household Income
Poverty Rate