Colerain Township, Lancaster County, Pennsylvania

Colerain Township, Lancaster County, Pennsylvania
Township
Historic house in Andrews Bridge
Map of Lancaster County highlighting Colerain Township
Country	United States
State	Pennsylvania
County	Lancaster
Settled	1758
Incorporated	1738
Government
• Type	Board of Supervisors
Area [1]
• Total	29.02 sq mi (75.16 km2)
• Land	28.35 sq mi (73.43 km2)
• Water	0.67 sq mi (1.73 km2)
Population  (2020)
• Total	3,883
• Estimate  (2021)[2]	3,913
• Density	130/sq mi (52/km2)
Time zone	UTC-5 (Eastern (EST))
• Summer (DST)	UTC-4 (EDT)
Area code	717
FIPS code	42-071-15056
Website	coleraintwppa.com

Colerain Township is a township in southeastern Lancaster County, Pennsylvania, United States. The population was 3,883 at the 2020 census,^[3] an increase over the figure of 3,635 tabulated in 2010.^[4] It is part of the Solanco School District.

Colerain Township was organized as a township in 1738. It was settled mainly by the Irish and was named after Coleraine, a seaport town in County Londonderry, now in Northern Ireland. Records show that Presbyterian Scots and Scotch-Irish also moved into Colerain Township very early into its settlement.

According to the 2020 "ACS 5-Year Estimates Data Profiles", 61.8% of the township's population spoke only English, while 38.1 spoke an "other [than Spanish] Indo-European language"^[3] (basically Pennsylvania German/German).