According to the U.S. Census Bureau, the township has a total area of 32.6 square miles (84 km2), all land.

Findlay Township has four borders, including the townships of Moon to the east and northeast, North Fayette to the southeast, Robinson in Washington County to the southwest, and Independence in Beaver County to the northwest.

[9][10] Since mid-2014, the Pittsburgh Post-Gazette has had a large printing operation in the Clinton area of the township.

[11] Prior to its dissolution, MidAtlantic Airways had its headquarters on the grounds of Pittsburgh International Airport in Findlay.

[12][13] Since 1979, the RIDC has developed business and research park property adjacent to the airport.

Western Allegheny Community Library serves Findlay Township, North Fayette, and Oakdale.