| Locality | Post Code |
|---|---|
| Aberdeen, Lancaster | 17022 |
| Adamstown, Lancaster | 19501 |
| Akron, Lancaster | 17501 |
| Andrews Bridge, Lancaster | 17509 |
| Bainbridge, Lancaster | 17502 |
| Bamford, Lancaster | 17538 |
| Bareville, Lancaster | 17540 |
| Bart, Lancaster | 17503 |
| Bartville, Lancaster | 17509 |
| Baumgardner, Lancaster | 17584 |
| Bausman, Lancaster | 17504 |
| Beartown, Lancaster | 17555 |
| Bellaire, Lancaster | 17022 |
| Bellemont, Lancaster | 17562 |
| Bethesda, Lancaster | 17532 |
| Bird in Hand, Lancaster | 17505 |
| Blainsport, Lancaster | 17569 |
| Blue Ball, Lancaster | 17506 |
| Bowmansville, Lancaster | 17507 |
| Brickerville, Lancaster | 17543 |
| Brownstown, Lancaster | 17508 |
| Buck, Lancaster | 17566 |
| Buyerstown, Lancaster | 17535 |
| Cedar Lane, Lancaster | 17519 |
| Central Manor, Lancaster | 17582 |
| Christiana, Lancaster | 17509 |