Warwick Township is a township in north-central Lancaster County, Pennsylvania, United States. The population was 19,068 at the 2020 census. It completely surrounds the borough of Lititz and contains the unincorporated villages of Brunnerville, Disston, Kissel Hill, Lexington, Millway, and Rothsville.

Lancaster County, sometimes nicknamed the Garden Spot of America or Pennsylvania Dutch Country, is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 552,984, making it Pennsylvania's sixth-most populous county. Its county seat is also Lancaster. Lancaster County comprises the Lancaster metropolitan statistical area. The county is part of the South Central region of the state.