Marshall County's 2026 population is estimated at 39,525, reflecting a 2.17% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Marshall County is the 41st largest county in Tennessee. The 2010 population was 30,688 and has grown 28.8% since 2010.
Data after 2023 is projected based on recent change
Overall: 39.5 years
Female: 40.7 years
Male: 38.2 years
There are 27,607 adults, (6,090 of whom are seniors) in Marshall County.
Female: 18,214 (50.5%)
Male: 17,835 (49.5%)
The racial composition of Marshall County includes 86.14% White, 3.86% other race, 3.74% Black or African American, and smaller percentages for Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 31,052 | 86.14% |
| Two or more races | 1,978 | 5.49% |
| Other race | 1,392 | 3.86% |
| Black or African American | 1,347 | 3.74% |
| Asian | 250 | 0.69% |
| Native American | 30 | 0.08% |
Marshall County 's average per capita income is $49,057. Household income levels show a median of $71,049. The poverty rate stands at 11.78%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $102,512 | - |
| Families | $90,582 | $113,237 |
| Households | $71,049 | $95,058 |
| Non Families | $39,248 | $48,716 |
Average Income
Median Household Income
Poverty Rate
