Find the last 4 digits (ZIP+4) for an address in 06851

ZIP 06851, Norwalk, CT is filled in. Just type the street address.

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ZIP Code 06851 – Norwalk, CT

Norwalk, Connecticut · Western Connecticut Planning Region · Eastern time

ZIP code06851
CityNorwalk
StateConnecticut
CountyWestern Connecticut Planning Region
Population27,865
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area7.69 sq mi
Center (lat, long)41.1382, -73.4016

Area codes in this area

203475

These are the area codes that most often serve ZIP 06851 (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

06858 Norwalk · 2.1 mi06856 Norwalk · 2.1 mi06881 Westport · 2.3 mi06850 Norwalk · 2.4 mi06889 Westport · 2.8 mi06880 Westport · 3 mi06854 Norwalk · 3.6 mi06838 Greens Farms · 4.4 mi

About ZIP 06851

ZIP code 06851 is assigned to Norwalk, Connecticut. It lies in Western Connecticut Planning Region. Its Census area covers about 7.69 square miles of land. The closest neighboring ZIP is 06858 (Norwalk), about 2.1 miles away.

Every address in 06851 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