Jefferson Township is a township in Fayette County, Pennsylvania, United States. The population was 2,007 at the 2020 census, a decline from the figure of 2,008 tabulated in 2010. It is named for former president Thomas Jefferson, and many of the township's streets are named after other U.S. presidents. Frazier School District serves the area.

Brownsville Township is a township in Fayette County, Pennsylvania, United States. The population was 536 at the 2020 census, a decline from the figure of 683 tabulated in 2010. It is served by the Brownsville School District.