Niagara County's 2026 population is estimated at 209,342, reflecting a -0.05% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Niagara County is the 18th largest county in New York. The 2010 population was 216,474 and has grown -3.29% since 2010.
Data after 2023 is projected based on recent change
Overall: 43.3 years
Female: 44.4 years
Male: 42 years
There are 168,871 adults, (43,688 of whom are seniors) in Niagara County.
Female: 107,118 (50.8%)
Male: 103,603 (49.2%)
The racial composition of Niagara County includes 82.95% White, 6.62% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 174,788 | 82.95% |
| Two or more races | 15,026 | 7.13% |
| Black or African American | 13,944 | 6.62% |
| Other race | 3,274 | 1.55% |
| Asian | 2,483 | 1.18% |
| Native American | 1,194 | 0.57% |
| Native Hawaiian or Pacific Islander | 12 | 0.01% |
Niagara County 's average per capita income is $50,051. Household income levels show a median of $69,633. The poverty rate stands at 13.53%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $105,215 | $126,052 |
| Families | $88,981 | $108,728 |
| Households | $69,633 | $89,159 |
| Non Families | $40,875 | $53,884 |
Average Income
Median Household Income
Poverty Rate
