what county is lancaster, pa in?
Lancaster County, Pennsylvania. Not to be confused with Lancaster City, Pennsylvania. Lancaster County local /ËlÃ¦Åkáµ»stÉr/, (Pennsylvania German: Lengeschder Kaundi) sometimes nicknamed the Garden Spot of America or Pennsylvania Dutch Country, is a county located in the south central part of the Commonwealth of Pennsylvania. As of the 2010 census, the population was 519,445. Its county seat is Lancaster.