Find the last 4 digits (ZIP+4) for an address in 51056

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ZIP Code 51056 – Smithland, IA

Smithland, Iowa · Woodbury County · Central time

ZIP code51056
CitySmithland
StateIowa
CountyWoodbury CountyMonona County
Population346
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area33.59 sq mi
Center (lat, long)42.2413, -95.9564

Area codes in this area

712

These are the area codes that most often serve ZIP 51056 (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

51051 Rodney · 2.5 mi51044 Oto · 4.9 mi51026 Hornick · 5.8 mi51015 Climbing Hill · 9.3 mi51004 Anthon · 9.8 mi51010 Castana · 10 mi51034 Mapleton · 10.1 mi51019 Danbury · 12.3 mi

About ZIP 51056

ZIP code 51056 is assigned to Smithland, Iowa. It crosses 2 counties; most of its land is in Woodbury County. Its Census area covers about 33.59 square miles of land. The closest neighboring ZIP is 51051 (Rodney), about 2.5 miles away.

Every address in 51056 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