[3] Hans Conrad Groff, originally from Bäretswil in Zurich, Switzerland immigrated to Pennsylvania Colony in 1695, settling in Germantown before making his way to Lancaster County in 1696.

Upon having relocated to West Earl Township, Groff established his farm in Groffdale and constructed the first mill in the area, with the community beginning to flourish as a result.

The township includes the unincorporated communities of Fairmount, Farmersville, Brownstown, Talmage, and Center Square.

Floyd Landis, winner of the 2006 Tour de France, is from Farmersville in the township.

Landis left such a mark on the Tour de France that when a contending rider completes a seemingly impossible long-distance attack it is referred to as "Doing a Landis", as Chris Froome did on Stage 19 of the 2018 Giro d'Italia.

15.9% of all households were made up of individuals, and 8.2% had someone living alone who was 65 years of age or older.