Lewis County's estimated 2026 population is 26,446 with a growth rate of -0.12% in the past year according to the most recent United States census data. Lewis County is the 59th largest county in New York. The 2010 population was 27,072 and has seen a growth of -2.31% since that time.
Data after 2023 is projected based on recent change
Overall: 41.9 years
Female: 41.8 years
Male: 42 years
There are 20,588 adults, (5,466 of whom are seniors) in Lewis County.
Female: 13,113 (49.3%)
Male: 13,494 (50.7%)
The racial composition of Lewis County includes 93.9% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 24,983 | 93.9% |
| Two or more races | 981 | 3.69% |
| Black or African American | 282 | 1.06% |
| Other race | 264 | 0.99% |
| Asian | 89 | 0.33% |
| Native American | 8 | 0.03% |
Lewis County's average per capita income is $47,396. Household income levels show a median of $68,182. The poverty rate stands at 12.34%.
Name | Median | Mean |
|---|---|---|
| Married Families | $93,079 | $104,079 |
| Families | $79,375 | $93,821 |
| Households | $68,182 | $80,901 |
| Non Families | $39,205 | $50,042 |
Average Income
Median Household Income
Poverty Rate
