Lancaster, the Red Rose City, is a city in the South Central part of the U.S. state of Pennsylvania and is the county seat of Lancaster County. With a population of 55,351, it is ranked as the 515th-largest city in the United States. (Lancaster County, with its suburbs, boroughs, and townships, is the 99th largest metropolitan statistical area in the United States, with an estimated population (in 2005) of 490,562.)
Lancaster is also the site of the Lancaster Science Fiction Book Group and GrangeCon. Nearby Elizabethtown hosts the E-town Science Fiction Group.