| Locality | Post Code |
|---|---|
| Fairland, Lancaster | 17543 |
| Falmouth, Lancaster | 17502 |
| Farmdale, Lancaster | 17552 |
| Farmersville, Lancaster | 17522 |
| Fertility, Lancaster | 17602 |
| Fetterville, Lancaster | 17555 |
| Fivepointville, Lancaster | 17517 |
| Florin, Lancaster | 17552 |
| Forest Knolls, Lancaster | 17575 |
| Fruitville, Lancaster | 17601 |
| Fulton, Lancaster | 17563 |
| Furniss, Lancaster | 17563 |
| Gap, Lancaster | 17527 |
| Goodville, Lancaster | 17528 |
| Gordonville, Lancaster | 17529 |
| Greenbank, Lancaster | 17557 |
| Groffdale, Lancaster | 17557 |
| Hahnstown, Lancaster | 17522 |
| Halfville, Lancaster | 17543 |
| Harristown, Lancaster | 17562 |
| Herrville, Lancaster | 17584 |
| Hessdale, Lancaster | 17579 |
| Highville, Lancaster | 17516 |
| Hinkletown, Lancaster | 17522 |
| Holtwood, Lancaster | 17532 |
| Hopeland, Lancaster | 17533 |