| Place | Post Code |
|---|---|
| Pearl Beach, Gosford | 2256 |
| Peats Ridge, Gosford | 2250 |
| Phegans Bay, Gosford | 2256 |
| Picketts Valley, Gosford | 2251 |
| Point Clare, Gosford | 2250 |
| Point Frederick, Gosford | 2250 |
| Pretty Beach, Gosford | 2257 |
| Saint Huberts Island, Gosford | 2257 |
| Saratoga, Gosford | 2251 |
| Somersby, Gosford | 2250 |
| Spencer, Gosford | 2775 |
| Springfield, Gosford | 2250 |
| Tascott, Gosford | 2250 |
| Terrigal, Gosford | 2260 |
| Umina Beach, Gosford | 2257 |
| Upper Mangrove, Gosford | 2250 |
| Wagstaffe, Gosford | 2257 |
| Wamberal, Gosford | 2260 |
| Wendoree Park, Gosford | 2250 |
| West Gosford, Gosford | 2250 |
| Wondabyne, Gosford | 2256 |
| Woy Woy, Gosford | 2256 |
| Woy Woy Bay, Gosford | 2256 |
| Wyoming, Gosford | 2250 |
| Yattalunga, Gosford | 2251 |
| All postal codes in Sydney Surrounds | |
|---|---|
| Blue Mountains, Sydney Surrounds | |
| Gosford, Sydney Surrounds | |
| Hawkesbury, Sydney Surrounds | |
| Wollondilly, Sydney Surrounds | |
| Wyong, Sydney Surrounds | |