Find the last 4 digits (ZIP+4) for an address in 03878

ZIP 03878, Somersworth, NH is filled in. Just type the street address.

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ZIP Code 03878 – Somersworth, NH

Somersworth, New Hampshire · Strafford County · Eastern time

ZIP code03878
CitySomersworth
StateNew Hampshire
CountyStrafford County
Area code603
Population12,205
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area9.82 sq mi
Center (lat, long)43.2535, -70.8879

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Nearby ZIP codes

03869 Rollinsford · 3.2 mi03821 Dover · 3.9 mi03822 Dover · 3.9 mi03901 Berwick · 3.9 mi03820 Dover · 4.6 mi03839 Rochester · 5 mi03868 Rochester · 5.5 mi03866 Rochester · 5.6 mi

About ZIP 03878

ZIP code 03878 is assigned to Somersworth, New Hampshire. It lies in Strafford County. Its Census area covers about 9.82 square miles of land. The closest neighboring ZIP is 03869 (Rollinsford), about 3.2 miles away.

Every address in 03878 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