| Zip Code | City | Population ↓ |
|---|---|---|
| 47304 | Muncie | 31,237 |
| 47302 | Muncie | 25,473 |
| 47303 | Muncie | 24,392 |
| 47396 | Yorktown | 7,712 |
| 47320 | Albany | 4,563 |
| 47306 | Muncie | 3,796 |
| 47305 | Muncie | 3,556 |
| 47334 | Daleville | 3,336 |
| 47342 | Gaston | 2,710 |
| 47383 | Selma | 2,612 |
| 47338 | Eaton | 2,355 |
| 47367 | Oakville | 70 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 12 ZCTAs in Delaware County, Indiana (US Census).