Jefferson County's estimated 2026 population is 112,270 with a growth rate of -0.39% 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 -3.72% since that time.
Data after 2023 is projected based on recent change
The racial composition of Jefferson County includes 83.3% White, 5% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (83.3%)
Two or more races (7%)
Black or African American (5%)
Other race (2.21%)
Asian (1.84%)
Native American (0.42%)
Native Hawaiian or Pacific Islander (0.24%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 96,742 | 83.3% |
| Two or more races | 8,132 | 7% |
| Black or African American | 5,802 | 5% |
| Other race | 2,565 | 2.21% |
| Asian | 2,134 | 1.84% |
| Native American | 482 | 0.42% |
| Native Hawaiian or Pacific Islander | 273 | 0.24% |
Married
Widowed
Divorced
Separated
Never Married
Jefferson County's average per capita income is $44,932. Household income levels show a median of $64,978. The poverty rate stands at 13.4%.
Name | Median | Mean |
|---|---|---|
| Married Families | $93,341 | $107,910 |
| Families | $80,333 | $98,118 |
| Households | $64,978 | $84,530 |
| Non Families | $41,143 | $54,048 |
Average Income
Median Household Income
Poverty Rate