Lewis County's 2026 population is estimated at 12,713, reflecting a -0.63% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Lewis County is the 88th largest county in Kentucky. The 2010 population was 13,836 and has grown -8.12% since 2010.
Data after 2023 is projected based on recent change
Overall: 42.4 years
Female: 43.4 years
Male: 41.5 years
There are 10,023 adults, (2,527 of whom are seniors) in Lewis County.
Female: 6,487 (50%)
Male: 6,478 (50%)
The racial composition of Lewis County includes 96.87% White, and smaller percentages for Two or more races, Black or African American, Native Hawaiian or Pacific Islander, other race, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 12,559 | 96.87% |
| Two or more races | 248 | 1.91% |
| Black or African American | 70 | 0.54% |
| Native Hawaiian or Pacific Islander | 33 | 0.25% |
| Other race | 33 | 0.25% |
| Asian | 22 | 0.17% |
Lewis County 's average per capita income is $36,646. Household income levels show a median of $46,838. The poverty rate stands at 22.03%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $64,922 | - |
| Families | $59,797 | $75,754 |
| Households | $46,838 | $65,354 |
| Non Families | $22,516 | $39,813 |
Average Income
Median Household Income
Poverty Rate
