ZIP Code 06371 – Old Lyme, CT
Old Lyme, Connecticut · Lower Connecticut River Valley Planning Region · Eastern time
| ZIP code | 06371 |
|---|---|
| City | Old Lyme |
| State | Connecticut |
| County | Lower Connecticut River Valley Planning Region |
| Population | 9,828 |
| Time zone | Eastern · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 54 sq mi |
| Center (lat, long) | 41.3624, -72.3238 |
Area codes in this area
These are the area codes that most often serve ZIP 06371 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Map
Nearby ZIP codes
About ZIP 06371
ZIP code 06371 is assigned to Old Lyme, Connecticut. It lies in Lower Connecticut River Valley Planning Region. Its Census area covers about 54 square miles of land. The closest neighboring ZIP is 06426 (Essex), about 3.9 miles away.
Every address in 06371 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources