53 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 17603 | Lancaster | 67,891 |
| 17601 | Lancaster | 56,164 |
| 17602 | Lancaster | 50,184 |
| 17543 | Lititz | 45,393 |
| 17522 | Ephrata | 34,061 |
| 17022 | Elizabethtown | 31,969 |
| 17545 | Manheim | 22,568 |
| 17552 | Mount Joy | 19,902 |
| 17512 | Columbia | 18,044 |
| 17557 | New Holland | 15,303 |
| 17517 | Denver | 15,051 |
| 17566 | Quarryville | 12,150 |
| 17551 | Millersville | 11,526 |
| 17584 | Willow Street | 11,521 |
| 17540 | Leola | 10,730 |
| 17547 | Marietta | 8,851 |
| 17554 | Mountville | 7,871 |
| 17578 | Stevens | 7,642 |
| 17538 | Landisville | 7,496 |
| 17569 | Reinholds | 7,460 |
| 17555 | Narvon | 6,924 |
| 17519 | East Earl | 6,651 |
| 17527 | Gap | 6,525 |
| 17579 | Strasburg | 6,409 |
| 17520 | East Petersburg | 5,202 |
| 17560 | New Providence | 5,154 |
| 17509 | Christiana | 5,068 |
| 17516 | Conestoga | 4,952 |
| 17529 | Gordonville | 4,795 |
| 17501 | Akron | 4,639 |
| 17562 | Paradise | 4,277 |
| 17563 | Peach Bottom | 4,073 |
| 17572 | Ronks | 3,824 |
| 17536 | Kirkwood | 3,610 |
| 17532 | Holtwood | 3,445 |
| 17535 | Kinzers | 2,545 |
| 17502 | Bainbridge | 2,483 |
| 17565 | Pequea | 2,229 |
| 17505 | Bird In Hand | 2,156 |
| 17582 | Washington Boro | 1,615 |
| 17518 | Drumore | 1,455 |
| 19501 | Adamstown | 1,084 |
| 17508 | Brownstown | 1,052 |
| 17506 | Blue Ball | 391 |
| 17606 | Lancaster | 317 |
| 17570 | Rheems | 212 |
| 17550 | Maytown | 168 |
| 17507 | Bowmansville | 158 |
| 17504 | Bausman | 142 |
| 17581 | Terre Hill | 126 |
| 17576 | Smoketown | 122 |
| 17534 | Intercourse | 39 |
| 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).