Wilmington Township, Mercer County, Pennsylvania

According to the United States Census Bureau, the township has a total area of 13.1 square miles (33.9 km²), of which, 13.1 square miles (33.9 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.15%) is water.

At the 2000 census there were 1,105 people in 380 households, including 299 families, in the township. The population density was 84.5 people per square mile (32.6/km²). There were 392 housing units at an average density of 30.0/sq mi (11.6/km²). The racial makeup of the township was 98.55% White, 0.09% African American, 0.36% Asian, 0.18% Pacific Islander, and 0.81% from two or more races. Hispanic or Latino of any race were 0.90%.[5]

There were 380 households, 35.3% had children under the age of 18 living with them, 69.2% were married couples living together, 5.8% had a female householder with no husband present, and 21.3% were non-families. 19.7% of households were made up of individuals, and 10.8% were one person aged 65 or older. The average household size was 2.91 and the average family size was 3.37.

The age distribution was 29.8% under the age of 18, 11.0% from 18 to 24, 22.0% from 25 to 44, 23.7% from 45 to 64, and 13.5% 65 or older. The median age was 36 years. For every 100 females there were 86.3 males. For every 100 females age 18 and over, there were 90.7 males.

The median household income was $38,068 and the median family income was $45,417. Males had a median income of $33,036 versus $21,250 for females. The per capita income for the township was $17,719. About 10.6% of families and 16.2% of the population were below the poverty line, including 25.0% of those under age 18 and 4.1% of those age 65 or over.