Sunbury is a city located in Northumberland County, Pennsylvania. Sunbury has a 2026 population of 9,473. It is also the county seat of Northumberland County. Sunbury is currently declining at a rate of -0.4% annually and its population has decreased by -2.35% since the most recent census, which recorded a population of 9,701 in 2020.
The median household income in Sunbury is $51,028 with a poverty rate of 18.67%. The median age in Sunbury is 45.1 years: 39.8 years for males, and 48.4 years for females. For every 100 females there are 95.6 males.
Data after 2023 is projected based on recent change
Overall: 45.1 years
Female: 48.4 years
Male: 39.8 years
There are 7,700 adults, (2,156 of whom are seniors) in Sunbury.
Female: 4,917 (51.1%)
Male: 4,700 (48.9%)
The racial composition of Sunbury includes 82.42% White, 7.23% other race, 3.33% Black or African American, and smaller percentages for Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 7,926 | 82.42% |
| Other race | 695 | 7.23% |
| Two or more races | 675 | 7.02% |
| Black or African American | 320 | 3.33% |
| Native American | 1 | 0.01% |
Sunbury 's average per capita income is $35,463. Household income levels show a median of $51,028. The poverty rate stands at 18.67%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $86,220 | - |
| Families | $65,463 | $83,236 |
| Households | $51,028 | $65,824 |
| Non Families | $27,538 | $37,035 |
Average Income
Median Household Income
Poverty Rate