Mercer County, Missouri

Mercer County, Missouri, had an estimated population of 3,404 in 2025 across 1,175 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among Missouri's counties and nationally.

Population
3,404
2025 estimate
Area
1,175 km²
Density
3
per km²
Median income
$62,679
household, ACS 2024
Median age
42.4
years, ACS 2024
How Missouri's counties spread
Amenities & Infrastructure
IndicatorValue
Households with Broadband202481.0%
Median Gross Rent2024$590
Median Home Value2024$104,900
Owner-Occupied Homes202481.0%
Vacant Homes202431.5%
Demography
IndicatorValue
Aged 65 and Over202422.3%
American Indian & Alaska Native20240.3%
Asian, non-Hispanic20240.9%
Average Household Size2024people2.6
Black, non-Hispanic20240.2%
Foreign-Born20243.6%
Hispanic or Latino20244.8%
Median Age2024years42.4
Sex Ratio2024per 1,000 males1,029
Speak a Language Other Than English20247.5%
Under 18202424.5%
Veterans20248.5%
White, non-Hispanic202491.1%
Economy
IndicatorValue
Below Poverty Line202413.5%
Households on SNAP202410.7%
Income Inequality2024index0.388
Median Household Income2024$62,679
Per Capita Income2024$27,204
Unemployment Rate20243.5%
Education
IndicatorValue
Bachelor's Degree or Higher202418.1%
High School or Higher202490.8%
Health Coverage
IndicatorValue
No Health Insurance20249.2%
With a Disability202416.6%
Population & Density
IndicatorValue
Population20253,404
Population Density2025/km²3
Work & Commute
IndicatorValue
Commute by Public Transit20240.4%
Households with No Vehicle20245.6%
Mean Commute Time2024minutes22.6
Work from Home202413.2%
Other counties of Missouri
Compare Mercer County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.