Atchison County's 2026 population is estimated at 5,185, reflecting a 0.45% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Atchison County is the 108th largest county in Missouri. The 2010 population was 5,656 and has grown -8.33% since 2010.
Data after 2023 is projected based on recent change
Overall: 46.7 years
Female: 48.7 years
Male: 45.5 years
There are 4,104 adults, (1,307 of whom are seniors) in Atchison County.
Female: 2,596 (50%)
Male: 2,591 (50%)
The racial composition of Atchison County includes 93.56% White, and smaller percentages for other race, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 4,853 | 93.56% |
| Two or more races | 226 | 4.36% |
| Other race | 59 | 1.14% |
| Asian | 22 | 0.42% |
| Black or African American | 13 | 0.25% |
| Native American | 7 | 0.13% |
| Native Hawaiian or Pacific Islander | 7 | 0.13% |
Atchison County 's average per capita income is $39,464. Household income levels show a median of $58,750. The poverty rate stands at 11.62%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $85,303 | - |
| Families | $70,625 | $91,776 |
| Households | $58,750 | $77,295 |
| Non Families | $34,224 | $47,668 |
Average Income
Median Household Income
Poverty Rate
