53 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 17603 | Lancaster | 66,788 |
| 17601 | Lancaster | 56,348 |
| 17602 | Lancaster | 51,461 |
| 17543 | Lititz | 45,606 |
| 17522 | Ephrata | 33,601 |
| 17022 | Elizabethtown | 32,066 |
| 17545 | Manheim | 23,257 |
| 17552 | Mount Joy | 19,747 |
| 17512 | Columbia | 18,235 |
| 17557 | New Holland | 15,229 |
| 17517 | Denver | 15,045 |
| 17566 | Quarryville | 12,276 |
| 17551 | Millersville | 11,884 |
| 17584 | Willow Street | 11,776 |
| 17540 | Leola | 11,172 |
| 17547 | Marietta | 9,100 |
| 17578 | Stevens | 7,716 |
| 17554 | Mountville | 7,561 |
| 17569 | Reinholds | 7,136 |
| 17538 | Landisville | 7,121 |
| 17519 | East Earl | 6,868 |
| 17555 | Narvon | 6,694 |
| 17527 | Gap | 6,479 |
| 17579 | Strasburg | 6,373 |
| 17560 | New Providence | 5,452 |
| 17516 | Conestoga | 5,241 |
| 17509 | Christiana | 5,028 |
| 17520 | East Petersburg | 5,001 |
| 17529 | Gordonville | 4,924 |
| 17501 | Akron | 4,823 |
| 17562 | Paradise | 4,187 |
| 17563 | Peach Bottom | 3,806 |
| 17572 | Ronks | 3,774 |
| 17536 | Kirkwood | 3,680 |
| 17532 | Holtwood | 3,345 |
| 17535 | Kinzers | 2,651 |
| 17502 | Bainbridge | 2,453 |
| 17565 | Pequea | 2,335 |
| 17505 | Bird In Hand | 2,036 |
| 17582 | Washington Boro | 1,711 |
| 17518 | Drumore | 1,371 |
| 17508 | Brownstown | 1,027 |
| 19501 | Adamstown | 950 |
| 17506 | Blue Ball | 446 |
| 17606 | Lancaster | 341 |
| 17550 | Maytown | 296 |
| 17570 | Rheems | 225 |
| 17581 | Terre Hill | 203 |
| 17507 | Bowmansville | 183 |
| 17576 | Smoketown | 109 |
| 17504 | Bausman | 99 |
| 17534 | Intercourse | 0 |
| 17568 | Refton | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 53 ZCTAs in Lancaster County, Pennsylvania (US Census).