Norristown Area School District is a school district located in Montgomery County, Pennsylvania. The school district serves the borough of Norristown, East Norriton Township, and West Norriton Township municipalities in central Montgomery County, just north-west of Philadelphia.

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.