| Locality | Post Code |
|---|---|
| Alder Bend, Clinton | 12910 |
| Altona, Clinton | 12910 |
| Au Sable Chasm, Clinton | 12911 |
| Au Sable Forks, Clinton | 12912 |
| Beekmantown, Clinton | 12901 |
| Cadyville, Clinton | 12918 |
| Champlain, Clinton | 12919 |
| Chazy, Clinton | 12921 |
| Chazy Landing, Clinton | 12921 |
| Churubusco, Clinton | 12923 |
| Clintonville, Clinton | 12924 |
| Coopersville, Clinton | 12919 |
| Dannemora, Clinton | 12929 |
| Ellenburg, Clinton | 12933 |
| Ellenburg Center, Clinton | 12934 |
| Ellenburg Depot, Clinton | 12935 |
| Harkness, Clinton | 12972 |
| Hawkeye, Clinton | 12912 |
| Ingraham, Clinton | 12992 |
| Irona, Clinton | 12910 |
| Keeseville, Clinton | 12911, 12924, 12944 |
| Lyon Mountain, Clinton | 12952, 12955 |
| Merrill, Clinton | 12955 |
| Mooers, Clinton | 12958 |
| Mooers Forks, Clinton | 12959 |
| Morrisonville, Clinton | 12962 |