Sumner County's 2026 population is estimated at 218,317, reflecting a 1.53% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Sumner County is the 8th largest county in Tennessee. The 2010 population was 161,226 and has grown 35.41% since 2010.
Data after 2023 is projected based on recent change
Overall: 39.8 years
Female: 40.6 years
Male: 38.8 years
There are 157,207 adults, (34,031 of whom are seniors) in Sumner County.
Female: 104,154 (50.9%)
Male: 100,270 (49.1%)
The racial composition of Sumner County includes 79.72% White, 8.52% Black or African American, 3.06% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 162,961 | 79.72% |
| Black or African American | 17,412 | 8.52% |
| Two or more races | 13,947 | 6.82% |
| Other race | 6,261 | 3.06% |
| Asian | 3,242 | 1.59% |
| Native American | 531 | 0.26% |
| Native Hawaiian or Pacific Islander | 70 | 0.03% |
Sumner County 's average per capita income is $53,880. Household income levels show a median of $90,301. The poverty rate stands at 8.82%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $118,910 | $146,345 |
| Families | $106,550 | $130,643 |
| Households | $90,301 | $113,861 |
| Non Families | $49,188 | $67,096 |
Average Income
Median Household Income
Poverty Rate
