Sunbury is located in Northumberland county Pennsylvania with a geographic area of 2.0 square miles. The total population in Sunbury is 9,446 with 47.5% male and 52.5% female. Children under age 5 represent 4.8% of the population, under age 18 equal 22.2% of the population and over age 65 is 19.4% of the population. The median household income is $34,303, per capita income is $23,083. There are a total of 4,298 housing units with 41.6% owner occupied. Education includes 52.2% of residents that are high school graduates and 10.1% with a bachelor's degree or higher. The average temperature in Sunbury in the summer is 70 degrees, and in the winter 33 degrees.
