Radnor Township School District, Delaware & Montgomery County, PA
Bryn Mawr
Performance Tier
Underperformer
Median Sold
$675,000
Avg. Appreciation
62%
Avg. $ Gain
$254,643
2025 Sales
11
Moderate Activity
Compared to the Radnor Township district average, Bryn Mawr is
underperforming by 51%.
Based on closed sales across 4 counties.
About
Bryn Mawr takes its name from the Welsh phrase for ‘big hill’ and was called Humphreysville until 1869, when Pennsylvania Railroad president John Edgar Thomson renamed the station in a deliberate effort to market the area to Philadelphia’s wealthy elite. The railroad sold original Bryn Mawr lots subject to written covenants — published in an 1874 promotional brochure — requiring minimum improvement values of $8,000 on Montgomery Avenue and mandating residential setbacks, a pattern that shaped the street geometry still present today. The community functions across three townships (Lower Merion in Montgomery County; Radnor and Haverford in Delaware County), three public school districts, and two county tax jurisdictions, making boundary-level due diligence a structural requirement before any purchase.
Specifications
Location Anchors
Bryn Mawr, PA 19010
Delaware & Montgomery, PA
40.029, -75.319
What Makes This Distinct
Because Bryn Mawr’s 19010 ZIP code spans Lower Merion, Radnor, and Haverford townships across two counties, a single mailing address can fall in any of three school districts — Lower Merion, Radnor Township, or Haverford Township — with materially different per-pupil spending figures, tax millage rates, and district boundaries; buyers should obtain written confirmation of their specific parcel’s school assignment from the relevant district before making an offer.
For Buyers & Sellers
If You’re Buying
$675k median price point. solid appreciation track record.
If You’re Selling
Strong appreciation – sellers gained $255k on average. trailing the district by 51%. solid 62% return on investment. median sale price $675k.
School District
Bryn Mawr is served by the Radnor Township School District. Buyers should verify current school assignments directly with the district.
View Radnor Township School District Information
Sources Consulted
Closed sales data · en.wikipedia.org · collections.lowermerionhistory.org · omgcparish.org · philadelphiaencyclopedia.org · rtsd.org · patch.com · unitedstateszipcodes.org · mainlinephillyhomes.com · septa.org · brynmawr.edu · livingplaces.com · victoryrealestatellc.com · lowermerion.org · zipdatamaps.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