McNairy County's 2026 population is estimated at 26,179, reflecting a 0.15% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). McNairy County is the 57th largest county in Tennessee. The 2010 population was 26,065 and has grown 0.44% since 2010.
Data after 2023 is projected based on recent change
Overall: 42.9 years
Female: 44.7 years
Male: 41.7 years
There are 20,370 adults, (5,410 of whom are seniors) in McNairy County.
Female: 13,137 (50.6%)
Male: 12,833 (49.4%)
The racial composition of McNairy County includes 90.18% White, 5.37% Black or African American, and smaller percentages for Asian, other race, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 23,420 | 90.18% |
| Black or African American | 1,394 | 5.37% |
| Two or more races | 918 | 3.53% |
| Asian | 108 | 0.42% |
| Other race | 73 | 0.28% |
| Native American | 57 | 0.22% |
McNairy County 's average per capita income is $43,275. Household income levels show a median of $53,473. The poverty rate stands at 16.52%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $78,422 | - |
| Families | $66,121 | $82,078 |
| Households | $53,473 | $69,996 |
| Non Families | $28,821 | $41,339 |
Average Income
Median Household Income
Poverty Rate
