Highest real estate mills: Delaware County, PA 2025-26
Real estate mills across 12 Delaware County, Pennsylvania school districts, 2025-26. William Penn SD leads at 32.86 mills. PDE; ranked by DistrictFacts.
- Districts ranked
- 12
- Period
- 2025-26
- Publication floor
- 8 districts
- Tie rule
- Equal values share a rank; the next rank skips.
- County definition
- The county holding the largest share of the district's land area (NCES EDGE, 2024–25).
Real estate tax rate in mills set in the district's own General Fund Budget and reported to PDE for 2025-26. One mill is $1 of tax for every $1,000 of assessed value. Counties, not districts, set assessed values and assess at different fractions of market value, so mills are not comparable between counties.
Measure: Real estate tax rate.
Source: PDE.
Mills are not comparable between counties.
Ranked districts
- 1. William Penn SD — 32.86 mills
- 2. Southeast Delco SD — 32.534 mills
- 3. Chichester SD — 30.111 mills
- 4. Ridley SD — 29.472 mills
- 5. Upper Darby SD — 26.523 mills
- 6. Interboro SD — 26.23 mills
- 7. Springfield SD — 22.178 mills
- 8. Penn-Delco SD — 20.737 mills
- 9. Haverford Township SD — 19.651 mills
- 10. Rose Tree Media SD — 15.736 mills
- 11. Radnor Township SD — 15.542 mills
- 12. Marple Newtown SD — 12.474 mills
Not ranked
- Chester-Upland SD — The state's file lists 2 figures for this measure here: Real estate tax rate — Delaware County (Chester City): 14.49 mills; Real estate tax rate — Delaware County (Chester Twp/Upland Boro): 13.686 mills. Each is shown on the district page; none is ranked as the district's single figure.
- Garnet Valley SD — The state's file lists 2 figures for this measure here: Bethel Twp: 19.908 mills; Chester Heights/Concord Twp: 19.908 mills. Each is shown on the district page; none is ranked as the district's single figure.
- Wallingford-Swarthmore SD — The state's file lists 2 figures for this measure here: Nether Twp / Rose Boro: 30.9182 mills; Rutledge / Swarthmore Boro: 30.9182 mills. Each is shown on the district page; none is ranked as the district's single figure.