County directory · Pennsylvania · 2026–27
School districts in Delaware County, PA
Delaware County has 15 regular public school districts, enrolling 69,877 students in 2024–25. The largest is Upper Darby SD (12,356 students, 18% of the county), followed by Haverford Township SD and Ridley SD. All 15 offer kindergarten. Pennsylvania sets no statewide kindergarten cutoff.
The 15 districts, largest first
| District and office | Grades | Schools | Students | Kindergarten | District office contact |
|---|---|---|---|---|---|
| Upper Darby SD 8201 Lansdowne Ave, Upper Darby | K–12 | 13 | 12,356 | 783 | (610) 789-7200 |
| Haverford Township SD 50 East Eagle Road, Havertown | K–12 | 7 | 6,511 | 359 | (610) 853-5900 |
| Ridley SD 901 Morton Ave Suite 100, Folsom | K–12 | 9 | 5,628 | 407 | (610) 534-1900 |
| William Penn SD 100 Green Avenue Annex, Lansdowne | K–12 | 11 | 4,499 | 308 | (610) 284-8000 |
| Garnet Valley SD 80 Station Road, Glen Mills | K–12 | 5 | 4,449 | 270 | (610) 579-7300 |
| Springfield SD 200 S Rolling Road, Springfield | K–12 | 5 | 4,432 | 266 | (610) 938-6000 |
| Rose Tree Media SD 308 N Olive St, Media | K–12 | 6 | 4,267 | 274 | (610) 627-6000 |
| Marple Newtown SD 40 Media Line Rd Ste 204, Newtown Square | K–12 | 6 | 3,942 | 217 | (610) 359-4200 |
| Southeast Delco SD 1560 Delmar Drive, Folcroft | K–12 | 6 | 3,855 | 230 | (610) 522-4300 |
| Wallingford-Swarthmore SD 200 S Providence Rd, Wallingford | K–12 | 5 | 3,699 | 222 | (610) 892-3470 |
| Radnor Township SD 135 S Wayne Ave, Wayne | K–12 | 5 | 3,598 | 235 | (610) 688-8100 |
| Interboro SD 200 S MacDade Blvd, Glenolden | K–12 | 6 | 3,366 | 245 | (610) 461-6700 |
| Penn-Delco SD 2821 Concord Rd, Aston | K–12 | 6 | 3,209 | 208 | (610) 497-6300 |
| Chester-Upland SD Administrative Offices, Chester | Pre-K–12 | 7 | 3,143 | 170 | (610) 447-3600 |
| Chichester SD 401 Cherry Tree Rd, Aston | K–12 | 6 | 2,923 | 200 | (610) 485-6881 |
Delaware County at a glance
Together the 15 districts run 103 schools from offices in 14 towns. The smallest by enrollment is Chichester SD, with 2,923 students; the median Delaware County district has 3,942. By grade span: 14 K–12 and 1 Pre-K–12.
Kindergarten in 2024–25, counting the 15 districts that report a K grade: 4,394 children. The biggest kindergarten was Upper Darby SD's, with 783; Ridley SD had 407, and the smallest, Chester-Upland SD, had 170.
Delaware County holds 15 of Pennsylvania's 500 regular districts (3.0%) and 4.7% of its 1,502,393 public school students, ranking 7th of 67 counties by number of districts and 5th by enrollment. By size, 3 enroll 5,000 or more and 12 enroll 1,000 to 4,999, and the average school here has about 678 students.
Which district am I in?
Each district draws its own attendance zones, so your home address decides it. There is no address lookup here; ask the district. Each one's own site:
Upper Darby SD · Haverford Township SD · Ridley SD · William Penn SD · Garnet Valley SD · Springfield SD · Rose Tree Media SD · Marple Newtown SD · Southeast Delco SD · Wallingford-Swarthmore SD · Radnor Township SD · Interboro SD · Penn-Delco SD · Chester-Upland SD · Chichester SD
What grade will my child be in?
More in Pennsylvania
Every Pennsylvania district by county · Pennsylvania kindergarten cutoff
More Pennsylvania county directories: Allegheny County (43) · Beaver County (14) · Lancaster County (16) · Luzerne County (12) · Schuylkill County (11) · Westmoreland County (17)