There is one unique ZIP code in Folsom, Pennsylvania and it is 19033. Area code: 610/484.
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1.19
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Folsom, PA ZIP code map
About Folsom, PA
Folsom is a small borough and census-designated place located in Delaware County, Pennsylvania, serving as a quiet residential community in the southeastern corner of the state. Covered by the single ZIP code 19033, Folsom offers a tightly knit neighborhood feel while remaining within easy reach of the greater Philadelphia metropolitan area. Its modest footprint and suburban character make it a popular choice for families and commuters who value proximity to urban amenities without the density of city living.
Location & geography
Folsom sits in Delaware County in southeastern Pennsylvania, roughly 15 miles southwest of Center City Philadelphia, placing it squarely within the Philadelphia suburbs. Neighboring communities include Ridley Park to the north, Prospect Park to the east, and Woodlyn to the west, all within just a few miles. The borough covers a compact land area of 1.19 square miles with no recorded water area, meaning the terrain is entirely land-based, consisting of gently rolling suburban landscape typical of the Delaware County lowlands.
Community & economy
Folsom has the character of a classic Pennsylvania suburb, with tree-lined streets, single-family homes, and a strong sense of local identity rooted in its Delaware County heritage. Daily life revolves around local schools, neighborhood parks, and easy access to commercial corridors along MacDade Boulevard, which serves as a main artery for shopping, dining, and services. The community is largely residential with small retail and service businesses supporting the everyday needs of its residents, and many locals commute to Philadelphia or other Delaware County employment centers.
Transportation
Folsom is conveniently served by MacDade Boulevard and Interstate 95 nearby, providing efficient highway access to Philadelphia to the northeast and Wilmington, Delaware to the southwest. The nearest major airport is Philadelphia International Airport, located approximately 8 to 10 miles to the northeast, making air travel highly accessible for residents. SEPTA regional rail and bus services operate in the surrounding Delaware County area, with stations in nearby Ridley Park and Prospect Park offering commuter rail connections into Philadelphia.
History
Folsom developed as part of the broader suburban expansion of Delaware County throughout the late 19th and early 20th centuries, as improved rail and road connections made the area accessible to Philadelphia workers seeking residential communities outside the city. The borough takes its name from a local family or place designation common to the region, and like many Delaware County communities, it grew steadily through the post-World War II housing boom that transformed much of suburban Philadelphia. Over the decades, Folsom transitioned from a modest working-class enclave into a stable middle-class residential community, reflecting broader demographic and economic shifts across the Delaware Valley region.
Did you know?
Despite its small size of just 1.19 square miles, Folsom's location places it within one of the most densely populated and historically rich county regions in the entire United States, Delaware County, which has been continuously settled since the 17th century. This means that Folsom residents live within a short drive of some of Pennsylvania's most significant colonial-era historical sites, Revolutionary War landmarks, and cultural institutions, giving this compact borough an outsized connection to American history.
