Find the last 4 digits (ZIP+4) for an address in 04421

ZIP 04421, Castine, ME is filled in. Just type the street address.

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ZIP Code 04421 – Castine, ME

Castine, Maine · Hancock County · Eastern time

ZIP code04421
CityCastine
StateMaine
CountyHancock County
Area code207
Population1,362
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area7.78 sq mi
Center (lat, long)44.4090, -68.8155

Map

Nearby ZIP codes

04420 Castine · 0.9 mi04617 Brooksville · 5.3 mi04642 Harborside · 5.4 mi04974 Searsport · 7 mi04972 Sandy Point · 7.3 mi04981 Stockton Springs · 7.3 mi04476 Penobscot · 7.4 mi04848 Islesboro · 9 mi

About ZIP 04421

ZIP code 04421 is assigned to Castine, Maine. It lies in Hancock County. Its Census area covers about 7.78 square miles of land. The closest neighboring ZIP is 04420 (Castine), about 0.9 miles away.

Every address in 04421 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