Sister cities of Lancaster, Pennsylvania

Lancaster (local /ˈlæŋkɨstər/; Pennsylvania Dutch: Lengeschder) is a city located in South Central Pennsylvania and serves as the seat of Pennsylvania's Lancaster County and one of the older non-coastal towns in the United States, (along with Springfield, Massachusetts; Petersburg, Virginia; Schenectady, New York, and several other settlements.). 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 the 101st largest metropolitan area in the US and 2nd largest in the South Central Pennsylvania area.

The city's primary industries include healthcare, tourism, public administration, manufacturing, both professional and semi-professional services, and home of the Park City Center shopping mall, the largest indoor retail facility in the region. Lancaster is known for its innovative adoption of advanced technology and hosts more electronic public CCTV outdoor cameras per capita than any other US city, despite controversy among residents. Lancaster was home to James Buchanan, the nation's 15th president, and to congressman and abolitionist Thaddeus Stevens.