| Locality | Post Code |
|---|---|
| Port Henry, Essex | 12974 |
| Port Kent, Essex | 12975 |
| Ray Brook, Essex | 12977 |
| Reber, Essex | 12996 |
| Saint Huberts, Essex | 12943 |
| Schroon Lake, Essex | 12870 |
| Severance, Essex | 12872 |
| Streetroad, Essex | 12883 |
| Tahawus, Essex | 12879 |
| Ticonderoga, Essex | 12883 |
| Upper Jay, Essex | 12987 |
| Wadhams, Essex | 12993 |
| Westport, Essex | 12993 |
| Whallonsburg, Essex | 12936 |
| Whiteface Mountain, Essex | 12997 |
| Willsboro, Essex | 12996 |
| Willsboro Point, Essex | 12996 |
| Wilmington, Essex | 12997 |
| Witherbee, Essex | 12998 |