Onondaga County's estimated 2026 population is 464,995 with a growth rate of -0.34% in the past year according to the most recent United States census data. Onondaga County is the 11th largest county in New York. The 2010 population was 467,549 and has seen a growth of -0.55% since that time.
Data after 2023 is projected based on recent change
Overall: 39.6 years
Female: 40.6 years
Male: 38.5 years
There are 372,575 adults, (87,986 of whom are seniors) in Onondaga County.
Female: 242,369 (51.4%)
Male: 228,760 (48.6%)
The racial composition of Onondaga County includes 74.85% White, 10.8% Black or African American, 4.13% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 352,626 | 74.85% |
| Black or African American | 50,904 | 10.8% |
| Two or more races | 36,532 | 7.75% |
| Asian | 19,457 | 4.13% |
| Other race | 9,132 | 1.94% |
| Native American | 2,263 | 0.48% |
| Native Hawaiian or Pacific Islander | 215 | 0.05% |
Onondaga County's average per capita income is $54,744. Household income levels show a median of $76,945. The poverty rate stands at 13.8%.
Name | Median | Mean |
|---|---|---|
| Married Families | $123,537 | $150,196 |
| Families | $101,959 | $126,882 |
| Households | $76,945 | $102,088 |
| Non Families | $47,546 | $63,428 |
Average Income
Median Household Income
Poverty Rate