Garnet Valley School District · Concord / Bethel Township, Delaware County, PA
Garnet Valley area (Glen Mills)
About
The Garnet Valley area in Glen Mills (ZIP 19342) is an unincorporated residential zone spread across Concord and Bethel townships in Delaware County, two of the oldest continuously settled areas in Pennsylvania — Concord Township dates to a 1683 land grant and Bethel Township records settler activity as early as 1682. The postal identity ‘Garnet Valley’ was created by the U.S. Postal Service in 2006 to allow residents of these townships, previously addressed under the Marcus Hook ZIP, to distinguish themselves from Upper Chichester Township; the name itself derives from garnet mines operated on Foulk Road in Bethel Township beginning in 1879 by Herman Behr & Co. of New York. Housing stock is broadly mixed: pre-Revolutionary stone farmhouses, mid-20th-century split-levels, 1990s–2000s colonial subdivisions, and newer townhome communities developed by regional and national builders all coexist within the same ZIP code footprint.
Specifications
Location Anchors
Concord / Bethel Township
Delaware, PA
39.866, -75.505
What Makes This Distinct
The Garnet Valley School District, which lends its name to this area, was formally organized on March 30, 1959, and was documented as the fastest-growing school district in Pennsylvania from 1993 to 2006 — a period of rapid residential subdivision development that produced many of the neighborhood’s mid-1990s through mid-2000s homes. However, because ZIP 19342 overlaps four school districts, a Garnet Valley mailing address carries no guarantee of Garnet Valley School District enrollment, which makes parcel-level school verification a non-negotiable due-diligence step for any buyer.
School District
Garnet Valley area (Glen Mills) is served by the Garnet Valley School District. Buyers should verify current school assignments directly with the district.
View Garnet Valley School District Information
Sources Consulted
Closed sales data · en.wikipedia.org · concordhist.org · livingplaces.com · newlingristmill.org · townshipofconcord.com · concordwoods.com · hmdb.org · homes.com · garnetvalleyschools.com
Data refreshed: April 25, 2026 (median sold, appreciation, performance tiers, narratives) · Content reviewed: April 25, 2026 (overview, structural insight)
The Cyr Team · neighborhood sales data · 4 counties