Find the last 4 digits (ZIP+4) for an address in 06357

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ZIP Code 06357 – Niantic, CT

Niantic, Connecticut · Southeastern Connecticut Planning Region · Eastern time

ZIP code06357
CityNiantic
StateConnecticut
CountySoutheastern Connecticut Planning Region
Population11,332
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area10.59 sq mi
Center (lat, long)41.3177, -72.2186

Area codes in this area

860959

These are the area codes that most often serve ZIP 06357 (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

06376 South Lyme · 2.4 mi06385 Waterford · 4.4 mi06333 East Lyme · 4.7 mi06371 Old Lyme · 6.3 mi06320 New London · 6.4 mi06375 Quaker Hill · 7.9 mi06475 Old Saybrook · 8.6 mi06349 Groton · 8.7 mi

About ZIP 06357

ZIP code 06357 is assigned to Niantic, Connecticut. It lies in Southeastern Connecticut Planning Region. Its Census area covers about 10.59 square miles of land. The closest neighboring ZIP is 06376 (South Lyme), about 2.4 miles away.

Every address in 06357 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