39 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 19082 | Upper Darby | 41,875 |
| 19063 | Media | 38,206 |
| 19083 | Havertown | 37,220 |
| 19013 | Chester | 34,697 |
| 19026 | Drexel Hill | 32,749 |
| 19050 | Lansdowne | 28,819 |
| 19064 | Springfield | 25,137 |
| 19018 | Clifton Heights | 23,150 |
| 19023 | Darby | 22,636 |
| 19010 | Bryn Mawr | 22,004 |
| 19073 | Newtown Square | 21,587 |
| 19014 | Aston | 21,242 |
| 19342 | Glen Mills | 20,654 |
| 19008 | Broomall | 20,193 |
| 19061 | Marcus Hook | 20,135 |
| 19015 | Brookhaven | 16,590 |
| 19003 | Ardmore | 14,411 |
| 19036 | Glenolden | 13,349 |
| 19086 | Wallingford | 12,835 |
| 19078 | Ridley Park | 11,742 |
| 19060 | Garnet Valley | 11,476 |
| 19085 | Villanova | 10,679 |
| 19081 | Swarthmore | 10,363 |
| 19079 | Sharon Hill | 9,014 |
| 19033 | Folsom | 7,614 |
| 19032 | Folcroft | 6,748 |
| 19076 | Prospect Park | 6,411 |
| 19041 | Haverford | 6,088 |
| 19070 | Morton | 6,057 |
| 19074 | Norwood | 5,915 |
| 19094 | Woodlyn | 4,517 |
| 19029 | Essington | 3,970 |
| 19022 | Crum Lynne | 3,882 |
| 19043 | Holmes | 3,550 |
| 19373 | Thornton | 2,288 |
| 19319 | Cheyney | 713 |
| 19052 | Lenni | 617 |
| 19017 | Chester Heights | 297 |
| 19113 | Philadelphia | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 39 ZCTAs in Delaware County, Pennsylvania (US Census).