Jefferson County's estimated 2026 population is 43,170 with a growth rate of -0.2% in the past year according to the most recent United States census data. Jefferson County is the 48th largest county in Pennsylvania. The 2010 population was 45,163 and has seen a growth of -4.41% since that time.
Data after 2023 is projected based on recent change
Overall: 44 years
Female: 44.8 years
Male: 43.1 years
There are 34,499 adults, (9,757 of whom are seniors) in Jefferson County.
Female: 21,830 (49.8%)
Male: 22,034 (50.2%)
The racial composition of Jefferson County includes 95.88% White, and smaller percentages for other race, Black or African American, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 42,057 | 95.88% |
| Two or more races | 1,316 | 3% |
| Other race | 187 | 0.43% |
| Black or African American | 157 | 0.36% |
| Asian | 121 | 0.28% |
| Native American | 26 | 0.06% |
Jefferson County's average per capita income is $42,136. Household income levels show a median of $58,686. The poverty rate stands at 14.15%.
Name | Median | Mean |
|---|---|---|
| Married Families | $84,063 | - |
| Families | $73,596 | $91,546 |
| Households | $58,686 | $76,614 |
| Non Families | $34,899 | $46,752 |
Average Income
Median Household Income
Poverty Rate