Jefferson County's estimated 2026 population is 110,285 with a growth rate of -1.13% in the past year according to the most recent United States census data. Jefferson County is the 26th largest county in New York. The 2010 population was 116,609 and has seen a growth of -5.42% since that time.
Data after 2023 is projected based on recent change
Overall: 33.7 years
Female: 35.9 years
Male: 31.9 years
There are 87,387 adults, (17,381 of whom are seniors) in Jefferson County.
Female: 54,679 (47.5%)
Male: 60,361 (52.5%)
The racial composition of Jefferson County includes 82.46% White, 4.8% 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 | 94,857 | 82.46% |
| Two or more races | 8,989 | 7.81% |
| Black or African American | 5,521 | 4.8% |
| Other race | 2,751 | 2.39% |
| Asian | 2,189 | 1.9% |
| Native American | 432 | 0.38% |
| Native Hawaiian or Pacific Islander | 301 | 0.26% |
Jefferson County's average per capita income is $46,558. Household income levels show a median of $66,301. The poverty rate stands at 13.68%.
Name | Median | Mean |
|---|---|---|
| Married Families | $94,385 | $111,053 |
| Families | $81,387 | $100,326 |
| Households | $66,301 | $86,210 |
| Non Families | $42,340 | $55,794 |
Average Income
Median Household Income
Poverty Rate
