Best School Districts in Delaware County
For a lot of families, choosing where to live in Delaware County comes down to one question first: which school district? Below is every Delaware County school district ranked by the NookLocal Academic Index, a 0-100 score built only from official Pennsylvania test and graduation results. For each district you'll find the towns it serves, so you can go straight from "which schools" to "which homes."
Academics: Pennsylvania Department of Education, 2025 PSSA and Keystone files and SY 2024-25 cohort graduation rates. Compiled 2026-06-26. School budgets and the new Common Level Ratio land each July, and we re-rank then.
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Radnor Township School District
Academic Index 86.3- PSSA
- 82%
- Keystone
- 85%
- Graduation
- 96%
Towns: Radnor Township
Typical total property tax ~1.26% of home value/yr · median asking $725,000 (35 active, 2026-06-26) · full profile & taxes
- #2
Springfield School District
Academic Index 83.1- PSSA
- 76%
- Keystone
- 83%
- Graduation
- 98%
Towns: Morton Borough, Springfield Township
Typical total property tax ~1.78% of home value/yr · median asking $542,500 (18 active, 2026-06-26) · full profile & taxes
- #3
Haverford Township School District
Academic Index 82.7- PSSA
- 78%
- Keystone
- 81%
- Graduation
- 97%
Towns: Haverford Township
Typical total property tax ~1.58% of home value/yr · median asking $599,750 (44 active, 2026-06-26) · full profile & taxes
- #4
Rose Tree Media School District
Academic Index 81.2- PSSA
- 76%
- Keystone
- 78%
- Graduation
- 98%
Towns: Edgmont Township, Media Borough, Middletown Township, Upper Providence Township
Typical total property tax ~1.21% of home value/yr · median asking $995,000 (47 active, 2026-06-26) · full profile & taxes
- #5
Wallingford-Swarthmore School District
Academic Index 80.2- PSSA
- 77%
- Keystone
- 76%
- Graduation
- 96%
Towns: Nether Providence Township, Rose Valley Borough, Rutledge Borough, Swarthmore Borough
Typical total property tax ~2.17% of home value/yr · median asking $572,500 (40 active, 2026-06-26) · full profile & taxes
- #6
Garnet Valley School District
Academic Index 79.1- PSSA
- 71%
- Keystone
- 78%
- Graduation
- 99%
Towns: Bethel Township, Chester Heights Borough, Concord Township
Typical total property tax ~1.39% of home value/yr · median asking $687,458 (40 active, 2026-06-26) · full profile & taxes
- #7
Marple Newtown School District
Academic Index 68.6- PSSA
- 60%
- Keystone
- 64%
- Graduation
- 95%
Towns: Marple Township, Newtown Township
Typical total property tax ~1.07% of home value/yr · median asking $799,900 (53 active, 2026-06-26) · full profile & taxes
- #8
Penn-Delco School District
Academic Index 59.2- PSSA
- 48%
- Keystone
- 52%
- Graduation
- 97%
Towns: Aston Township, Brookhaven Borough, Parkside Borough
Typical total property tax ~1.60% of home value/yr · median asking $371,450 (32 active, 2026-06-26) · full profile & taxes
- #9
Ridley School District
Academic Index 55.4- PSSA
- 42%
- Keystone
- 51%
- Graduation
- 92%
Towns: Eddystone Borough, Ridley Park Borough, Ridley Township
Typical total property tax ~2.19% of home value/yr · median asking $327,450 (46 active, 2026-06-26) · full profile & taxes
- #10
Interboro School District
Academic Index 52.8- PSSA
- 38%
- Keystone
- 46%
- Graduation
- 97%
Towns: Glenolden Borough, Norwood Borough, Prospect Park Borough, Tinicum Township
Typical total property tax ~2.05% of home value/yr · median asking $290,000 (29 active, 2026-06-26) · full profile & taxes
- #11
Chichester School District
Academic Index 51.1- PSSA
- 38%
- Keystone
- 45%
- Graduation
- 88%
Towns: Lower Chichester Township, Marcus Hook Borough, Trainer Borough, Upper Chichester Township
Typical total property tax ~2.41% of home value/yr · median asking $309,900 (29 active, 2026-06-26) · full profile & taxes
- #12
Southeast Delco School District
Academic Index 36.3- PSSA
- 25%
- Keystone
- 26%
- Graduation
- 79%
Towns: Collingdale Borough, Darby Township, Folcroft Borough, Sharon Hill Borough
Typical total property tax ~2.54% of home value/yr · median asking $219,900 (51 active, 2026-06-26) · full profile & taxes
- #13
Upper Darby School District
Academic Index 36.3- PSSA
- 22%
- Keystone
- 28%
- Graduation
- 83%
Towns: Clifton Heights Borough, Millbourne Borough, Upper Darby Township
Typical total property tax ~2.36% of home value/yr · median asking $260,000 (136 active, 2026-06-26) · full profile & taxes
- #14
William Penn School District
Academic Index 33.6- PSSA
- 21%
- Keystone
- 20%
- Graduation
- 85%
Towns: Aldan Borough, Colwyn Borough, Darby Borough, East Lansdowne Borough, Lansdowne Borough, Yeadon Borough
Typical total property tax ~2.66% of home value/yr · median asking $222,444 (80 active, 2026-06-26) · full profile & taxes
- #15
Chester-Upland School District
Academic Index 22.9- PSSA
- 8%
- Keystone
- 11%
- Graduation
- 77%
Towns: Chester Township, City Of Chester, Upland Borough
Typical total property tax ~1.36% of home value/yr · median asking $140,000 (64 active, 2026-06-26) · full profile & taxes
Want schools and taxes side by side?
The School District Value Matrix ranks every district by academics next to its true property-tax rate, the full picture for Delaware County and beyond.
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How we rank
Academic Index (0-100). 40% PSSA grades 3-8 (mean of ELA and Math proficiency), 40% Keystone grade 11 (mean of Algebra I, Literature, Biology), 20% four-year cohort graduation rate, all from the Pennsylvania Department of Education's official files, "All Students" group, 2025 administration (SY 2024-25). We publish the components so you can re-weight them yourself. The index reflects student outcomes; it isn't a verdict on any individual school or teacher. Two honest limits: participation varies (some districts have meaningful PSSA opt-out rates, which moves proficiency figures), and small districts' graduation rates ride on cohorts of under 100 students, where a handful of students moves the rate. Charter and cyber-charter schools are separate entities and aren't part of these district figures.
Common questions
What is the best school district in Delaware County, PA?
By the NookLocal Academic Index, a 0-100 score built only from official PSSA, Keystone, and graduation results, Radnor Township ranks first among Delaware County districts, with an index of 86.3 (PSSA 82%, Keystone 85%, graduation 96%). "Best" depends on your family, and the full ranking above shows how every district compares.
How is the NookLocal Academic Index calculated?
It is a 0-100 composite of official Pennsylvania Department of Education results: 40% PSSA grades 3-8 (average of English Language Arts and Math proficiency, 2025 administration), 40% Keystone Exams grade 11 (Algebra I, Literature, and Biology), and 20% four-year cohort graduation rate (SY 2024-25). All figures are the published "All Students" group, with no ratings, surveys, or demographic adjustment. It measures outcomes, not school effectiveness.
What towns are in the Radnor Township School District?
Radnor Township School District serves Radnor Township. Each town links to its homes-for-sale page above, and the district profile lists every municipality and its tax rate.
How do Delaware County school districts compare on property taxes?
This page ranks districts on academics alone. Property taxes vary widely by municipality, even within one district, so we keep them on the full School District Value Matrix, which joins every district's academic score with its true tax rate (millage multiplied by the county's Common Level Ratio). See the matrix to weigh schools against what you'd actually pay.
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Academic data: Pennsylvania Department of Education public district-level files (PSSA, Keystone, cohort graduation rates). Scores summarize published outcomes only and are not a measure of any individual school. Verify current figures with the district before making decisions.