Lewis County's estimated 2026 population is 13,620 with a growth rate of 0.99% in the past year according to the most recent United States census data. Lewis County is the 84th largest county in Tennessee. The 2010 population was 12,175 and has seen a growth of 11.87% since that time.
Data after 2023 is projected based on recent change
Overall: 41.9 years
Female: 46.5 years
Male: 39.1 years
There are 10,246 adults, (2,671 of whom are seniors) in Lewis County.
Female: 6,396 (49.2%)
Male: 6,596 (50.8%)
The racial composition of Lewis County includes 92.88% White, and smaller percentages for Black or African American, Asian, other race, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 12,067 | 92.88% |
| Two or more races | 747 | 5.75% |
| Black or African American | 73 | 0.56% |
| Asian | 47 | 0.36% |
| Other race | 37 | 0.28% |
| Native Hawaiian or Pacific Islander | 21 | 0.16% |
Lewis County's average per capita income is $42,348. Household income levels show a median of $56,285. The poverty rate stands at 16.75%.
Name | Median | Mean |
|---|---|---|
| Married Families | $86,810 | - |
| Families | $82,750 | $104,014 |
| Households | $56,285 | $81,653 |
| Non Families | $25,240 | $38,662 |
Average Income
Median Household Income
Poverty Rate
