Jefferson County's estimated 2026 population is 42,851 with a growth rate of -0.6% in the past year according to the most recent United States census data. Jefferson County is the 49th largest county in Pennsylvania. The 2010 population was 45,163 and has seen a growth of -5.12% since that time.
Data after 2023 is projected based on recent change
The racial composition of Jefferson County includes 96.54% White, and smaller percentages for Two or more races, Black or African American, other race, Asian, Native American and multiracial populations.
White (96.54%)
Two or more races (2.34%)
Black or African American (0.47%)
Other race (0.35%)
Asian (0.25%)
Native American (0.05%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 42,575 | 96.54% |
| Two or more races | 1,030 | 2.34% |
| Black or African American | 207 | 0.47% |
| Other race | 155 | 0.35% |
| Asian | 109 | 0.25% |
| Native American | 23 | 0.05% |
Married
Widowed
Divorced
Separated
Never Married
Jefferson County's average per capita income is $41,103. Household income levels show a median of $56,898. The poverty rate stands at 15.26%.
Name | Median | Mean |
|---|---|---|
| Married Families | $79,562 | - |
| Families | $70,758 | $87,492 |
| Households | $56,898 | $73,117 |
| Non Families | $34,111 | $45,577 |
Average Income
Median Household Income
Poverty Rate