Slatedale,_Pennsylvania
Slatedale, Pennsylvania
Census-designated place in Pennsylvania, United States
Slatedale is an unincorporated community and census-designated place (CDP) in Washington Township in Lehigh County, Pennsylvania. As of the 2010 census, it had a population of 455.[2] It is part of the Lehigh Valley, which had a population of 861,899 and was the 68th-most populous metropolitan area in the U.S. as of the 2020 census.