Harborcreek Township, Erie County, Pennsylvania
|Area||34.2 sq mi (89 km2)|
|Density||443.2 / sq mi (171 / km2)|
|- summer (DST)||EDT (UTC-5)|
|ZIP code||16421, 16510|
According to the United States Census Bureau, the township has a total area of 34.2 square miles (89 km2), all of it land.
As of the census of 2010, there were 17,234 people, 6,155 households, and 4,372 families residing in the township. The population density was 503.9 people per square mile (201.6/km²). There were 6,461 housing units at an average density of 188.9/sq mi (75.6/km²). The racial makeup of the township was 96.7% White, 1.4% African American, 0.1% Native American, 0.8% Asian, 0.2% from other races, and 0.8% from two or more races. Hispanic or Latino of any race were 1% of the population.
There were 6,155 households out of which 28.3% had children under the age of 18 living with them, 59.1% were married couples living together, 7.7% had a female householder with no husband present, and 29% were non-families. 24.2% of all households were made up of individuals and 12% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 2.96.
In the township the population was spread out with 26.7% under the age of 20, 8.5% from 20 to 24, 19% from 25 to 44, 29.2% from 45 to 64, and 16.6% who were 65 years of age or older. The median age was 41.5 years.
The median income for a household in the township was $61,800, and the median income for a family was $72,445. Males had a median income of $53,302 versus $34,747 for females. The per capita income for the township was $24,525. About 3.9% of families and 9.1% of the population were below the poverty line, including 8.5% of those under age 18 and 6.5% of those age 65 or over.