Towamencin Township is a home rule township in Montgomery County, Pennsylvania, United States. The population was 17,578 at the 2010 census. It is part of the North Penn School District and the North Penn Valley region that is centered around the borough of Lansdale. Towamencin has residential neighborhoods, historic farmhouses, recreational facilities, many schools, and open spaces. The community is a mix of residential, commercial and rural development. The Township is centrally located within Montgomery County with easy access to the Pennsylvania Turnpike’s Northeast Extension.

Montgomery County, colloquially referred to as Montco, is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population of the county was 856,553, making it the third-most populous county in Pennsylvania after Philadelphia and Allegheny counties. The county is part of the Southeast Pennsylvania region of the state.