29 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 12946 | Lake Placid | 4,872 |
| 12883 | Ticonderoga | 4,744 |
| 12944 | Keeseville | 3,910 |
| 12928 | Crown Point | 1,984 |
| 12993 | Westport | 1,926 |
| 12996 | Willsboro | 1,903 |
| 12870 | Schroon Lake | 1,756 |
| 12974 | Port Henry | 1,617 |
| 12941 | Jay | 1,487 |
| 12932 | Elizabethtown | 1,278 |
| 12956 | Mineville | 1,271 |
| 12997 | Wilmington | 1,251 |
| 12977 | Ray Brook | 1,213 |
| 12960 | Moriah | 1,143 |
| 12936 | Essex | 691 |
| 12950 | Lewis | 628 |
| 12857 | Olmstedville | 606 |
| 12852 | Newcomb | 490 |
| 12942 | Keene | 450 |
| 12998 | Witherbee | 399 |
| 12851 | Minerva | 275 |
| 12943 | Keene Valley | 260 |
| 12855 | North Hudson | 208 |
| 12987 | Upper Jay | 119 |
| 12858 | Paradox | 118 |
| 12975 | Port Kent | 78 |
| 12964 | New Russia | 73 |
| 12961 | Moriah Center | 22 |
| 12872 | Severance | 22 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 29 ZCTAs in Essex County, New York (US Census).