York Haven is a borough in York County, Pennsylvania, United States. The population was 709 at the 2010 census. The borough is the home of the Brunner Island coal-fired electrical generation plant, located on the Susquehanna River on Wago Road and operated by PPL.
York Haven is located at 40°6′34″N 76°42′53″W (40.109502, -76.714819).
According to the United States Census Bureau, the borough has a total area of 0.3 square miles (0.78 km2), of which 0.04 square miles (0.10 km2) of it, or 5.88%, is water.
At the 2000 census there were 809 people, 278 households, and 197 families living in the borough. The population density was 2,531.8 people per square mile (976.1/km²). There were 305 housing units at an average density of 954.5 per square mile (368.0/km²). The racial makeup of the borough was 96.04% White, 0.74% African American, 0.37% Native American, 0.62% Asian, 0.12% from other races, and 2.10% from two or more races. Hispanic or Latino of any race were 1.24%.
Of the 278 households 48.9% had children under the age of 18 living with them, 48.6% were married couples living together, 14.7% had a female householder with no husband present, and 28.8% were non-families. 23.0% of households were one person and 6.8% were one person aged 65 or older. The average household size was 2.91 and the average family size was 3.40.