Harwick is a census-designated place (CDP) in

Allegheny County Allegheny County () is a County (United States), county in the Commonwealth (U.S. state), Commonwealth of Pennsylvania. It is located in Southwestern Pennsylvania. As of the 2020 census, the population was 1,250,578, making it the state's seco ...

Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...

, United States, and is located within Springdale Township. As of the 2020 census, it had a population of 850.

Demographics

References

Census-designated places in Allegheny County, Pennsylvania Census-designated places in Pennsylvania {{AlleghenyCountyPA-geo-stub