Marshall County's 2026 population is estimated at 31,768, reflecting a 0.05% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Marshall County is the 33rd largest county in Kentucky. The 2010 population was 31,453 and has grown 1% since 2010.
Data after 2023 is projected based on recent change
Overall: 45.1 years
Female: 45.8 years
Male: 43.9 years
There are 25,355 adults, (7,165 of whom are seniors) in Marshall County.
Female: 15,960 (50.3%)
Male: 15,783 (49.7%)
The racial composition of Marshall County includes 95.96% White, and smaller percentages for Two or more races, Black or African American, Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 30,462 | 95.96% |
| Two or more races | 817 | 2.57% |
| Black or African American | 213 | 0.67% |
| Asian | 128 | 0.4% |
| Other race | 66 | 0.21% |
| Native American | 53 | 0.17% |
| Native Hawaiian or Pacific Islander | 4 | 0.01% |
Marshall County 's average per capita income is $43,393. Household income levels show a median of $65,831. The poverty rate stands at 12.27%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $91,481 | - |
| Families | $81,129 | $97,218 |
| Households | $65,831 | $83,442 |
| Non Families | $34,825 | $50,213 |
Average Income
Median Household Income
Poverty Rate
