53 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 17603 | Lancaster | 67,571 |
| 17601 | Lancaster | 56,382 |
| 17602 | Lancaster | 52,217 |
| 17543 | Lititz | 45,912 |
| 17522 | Ephrata | 33,852 |
| 17022 | Elizabethtown | 31,908 |
| 17545 | Manheim | 23,556 |
| 17552 | Mount Joy | 19,761 |
| 17512 | Columbia | 18,148 |
| 17557 | New Holland | 15,055 |
| 17517 | Denver | 14,686 |
| 17566 | Quarryville | 12,603 |
| 17551 | Millersville | 11,753 |
| 17584 | Willow Street | 11,646 |
| 17540 | Leola | 10,728 |
| 17547 | Marietta | 9,210 |
| 17578 | Stevens | 7,504 |
| 17554 | Mountville | 7,453 |
| 17569 | Reinholds | 7,323 |
| 17538 | Landisville | 7,314 |
| 17555 | Narvon | 7,251 |
| 17519 | East Earl | 7,127 |
| 17579 | Strasburg | 6,875 |
| 17527 | Gap | 6,094 |
| 17560 | New Providence | 5,460 |
| 17516 | Conestoga | 5,180 |
| 17509 | Christiana | 5,135 |
| 17520 | East Petersburg | 5,040 |
| 17529 | Gordonville | 4,826 |
| 17501 | Akron | 4,614 |
| 17562 | Paradise | 4,373 |
| 17563 | Peach Bottom | 3,952 |
| 17572 | Ronks | 3,643 |
| 17536 | Kirkwood | 3,452 |
| 17532 | Holtwood | 3,328 |
| 17535 | Kinzers | 3,042 |
| 17565 | Pequea | 2,523 |
| 17502 | Bainbridge | 2,485 |
| 17505 | Bird In Hand | 2,358 |
| 17582 | Washington Boro | 1,702 |
| 17518 | Drumore | 1,360 |
| 17508 | Brownstown | 1,125 |
| 19501 | Adamstown | 823 |
| 17506 | Blue Ball | 469 |
| 17606 | Lancaster | 404 |
| 17550 | Maytown | 313 |
| 17581 | Terre Hill | 180 |
| 17570 | Rheems | 176 |
| 17504 | Bausman | 105 |
| 17576 | Smoketown | 103 |
| 17507 | Bowmansville | 64 |
| 17534 | Intercourse | 0 |
| 17568 | Refton | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 53 ZCTAs in Lancaster County, Pennsylvania (US Census).