Sunbury

County:: Northumberland County
County Seat:: Yes
Area (mi²):: 2.007
State:: Pennsylvania

Sunbury is a city located in Northumberland County, Pennsylvania. Sunbury has a 2025 population of 9,429. It is also the county seat of Northumberland County. Sunbury is currently declining at a rate of -0.58% annually and its population has decreased by -2.83% since the most recent census, which recorded a population of 9,704 in 2020.

The average household income in Sunbury is $62,852 with a poverty rate of 16.19%. The median age in Sunbury is 41.4 years: 37.9 years for males, and 45.1 years for females.

Demographics

The racial composition of Sunbury includes 85.07% White, 5.54% other race, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	8,203	85.07%
Two or more races	625	6.48%
Other race	534	5.54%
Black or African American	280	2.9%
Native American	1	0.01%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Sunbury Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sunbury's average per capita income is $35,262. Household income levels show a median of $48,509. The poverty rate stands at 16.19%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$75,556	-
Families	$61,696	$77,942
Households	$48,509	$62,852
Non Families	$29,125	$36,527

$35,262

Average Income

$48,509

Median Household Income

16.19%

Poverty Rate