Pennsburg is a borough in Montgomery County, Pennsylvania. Its population was 3,889 at the 2020 census. It is part of the Upper Perkiomen School District. It is also part of the strip of small towns that run together along Route 29: Red Hill, Pennsburg, and East Greenville. The towns are collectively referred to as Upper Perk.

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.