14 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 17325 | Gettysburg | 29,857 |
| 17350 | New Oxford | 13,219 |
| 17340 | Littlestown | 11,403 |
| 17316 | East Berlin | 8,460 |
| 17320 | Fairfield | 8,103 |
| 17307 | Biglerville | 5,677 |
| 17301 | Abbottstown | 4,122 |
| 17372 | York Springs | 3,845 |
| 17344 | McSherrystown | 3,770 |
| 17304 | Aspers | 3,039 |
| 17353 | Orrtanna | 2,745 |
| 17306 | Bendersville | 538 |
| 17303 | Arendtsville | 439 |
| 17343 | McKnightstown | 27 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 14 ZCTAs in Adams County, Pennsylvania (US Census).