Founded in 1799, Essex County is one of 62 counties in the state of New York. Historically, Essex County was formed from Clinton County. The city of Elizabethtown is the county seat. With FIPS code of 31, Essex County has a population of 37,268 and area of 1,916 square miles (4,962 km2).
List of all cities in Essex County, NY alphabetically
| City/Town | Postal Code | Area Code |
| Bloomingdale, NY | 12913 | 518 |
| Blue Ridge, NY | 12870 | 518 |
| Chilson, NY | 12883 | 518 |
| Crown Point, NY | 12928 | 518 |
| Eagle Lake, NY | 12883 | 518 |
| Elizabethtown, NY | 12932 | 518 |
| Essex, NY | 12936 | 518 |
| Factoryville, NY | 12928 | 518 |
| Grover Hills, NY | 12956 | 518 |
| Ironville, NY | 12928 | 518 |
| Jay, NY | 12941 | 518 |
| Keene, NY | 12942 | 518 |
| Keene Valley, NY | 12943 | 518 |
| Lake Placid, NY | 12946 | 518 |
| Lewis, NY | 12950 | 518 |
| Minerva, NY | 12851 | 518 |
| Mineville, NY | 12956 | 518 |
| Moriah, NY | 12960 | 518 |
| Moriah Center, NY | 12961 | 518 |
| Moriah Corners, NY | 12960 | 518 |
| New Russia, NY | 12964 | 518 |
| Newcomb, NY | 12852 | 518 |
| Newcomb, NY | 12879 | 518 |
| North Hudson, NY | 12855 | 518 |
| Olmstedville, NY | 12857 | 518 |
| Paradox, NY | 12858 | 518 |
| Paradox Lake, NY | 12858 | 518 |
| Port Henry, NY | 12974 | 518 |
| Port Kent, NY | 12975 | 518 |
| Ray Brook, NY | 12977 | 518 |
| Reber, NY | 12996 | 518 |
| Saint Huberts, NY | 12943 | 518 |
| Schroon Lake, NY | 12870 | 518 |
| Severance, NY | 12872 | 518 |
| Streetroad, NY | 12883 | 518 |
| Tahawus, NY | 12879 | 518 |
| Ticonderoga, NY | 12858 | 518 |
| 12883 | 518 | |
| Upper Jay, NY | 12987 | 518 |
| Wadhams, NY | 12993 | 518 |
| Westport, NY | 12993 | 518 |
| Whallonsburg, NY | 12936 | 518 |
| Whiteface Mountain, NY | 12997 | 518 |
| Willsboro, NY | 12996 | 518 |
| Willsboro Point, NY | 12996 | 518 |
| Wilmington, NY | 12997 | 518 |
| Witherbee, NY | 12998 | 518 |