Lancaster County /ˈlæŋkɨstər/, 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, in the United States. The City of Lancaster is the county seat. As of 2010 the population of the county was 519,445. Lancaster County forms the Lancaster Metropolitan Statistical Area, the 99th largest of 361 MSAs in the United States. The County of Lancaster is a popular tourist destination.