Lancaster is a city in the south-central part of the Commonwealth of Pennsylvania. It is the county seat of Lancaster County and one of the oldest inland cities in the United States. With a population of 59,322, it ranks eighth in population among Pennsylvania's cities. The Lancaster metropolitan area population is 507,766, making it 101st among US metropolitan areas.
Lancaster was home to James Buchanan, the nation's 15th president, and to congressman and abolitionist Thaddeus Stevens.
The city's primary industries include healthcare, tourism, manufacturing, and professional services, and it is home to the Park City Center shopping mall. A controversial citywide video surveillance system includes the most outdoor cameras per capita of any US city.