Mississippi County's 2026 population is estimated at 12,058, reflecting a 0.46% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Mississippi County is the 76th largest county in Missouri. The 2010 population was 14,333 and has grown -15.87% since 2010.
Overall: 41.1 years
Female: 43.4 years
Male: 40 years
There are 9,214 adults, (2,244 of whom are seniors) in Mississippi County.
Female: 5,707 (47.9%)
Male: 6,195 (52.1%)
The racial composition of Mississippi County includes 71.14% White, 18.96% Black or African American, and smaller percentages for Asian, Native American, other race and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 8,467 | 71.14% |
| Black or African American | 2,257 | 18.96% |
| Two or more races | 1,096 | 9.21% |
| Asian | 76 | 0.64% |
| Native American | 4 | 0.03% |
| Other race | 2 | 0.02% |
Mississippi County 's average per capita income is $38,396. Household income levels show a median of $48,160. The poverty rate stands at 19.04%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $91,982 | - |
| Families | $67,344 | $76,567 |
| Households | $48,160 | $63,429 |
| Non Families | $26,619 | $38,365 |
Average Income
Median Household Income
Poverty Rate