Lewis County's estimated 2026 population is 26,542 with a growth rate of -0.05% 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 -1.96% since that time.
Data after 2023 is projected based on recent change
The racial composition of Lewis County includes 94.35% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
White (94.35%)
Two or more races (3.57%)
Black or African American (0.92%)
Other race (0.9%)
Asian (0.21%)
Native American (0.05%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 25,113 | 94.35% |
| Two or more races | 950 | 3.57% |
| Black or African American | 245 | 0.92% |
| Other race | 240 | 0.9% |
| Asian | 56 | 0.21% |
| Native American | 14 | 0.05% |
Married
Widowed
Divorced
Separated
Never Married
Lewis County's average per capita income is $46,298. Household income levels show a median of $68,329. The poverty rate stands at 12.25%.
Name | Median | Mean |
|---|---|---|
| Married Families | $88,235 | - |
| Families | $78,095 | $90,755 |
| Households | $68,329 | $79,621 |
| Non Families | $36,863 | $49,849 |
Average Income
Median Household Income
Poverty Rate