Find the last 4 digits (ZIP+4) for an address in 51446

ZIP 51446, Irwin, IA is filled in. Just type the street address.

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ZIP Code 51446 – Irwin, IA

Irwin, Iowa · Shelby County · Central time

ZIP code51446
CityIrwin
StateIowa
CountyShelby County
Population499
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area35.78 sq mi
Center (lat, long)41.7766, -95.1927

Area codes in this area

712

These are the area codes that most often serve ZIP 51446 (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

51447 Kirkman · 3.8 mi51454 Manilla · 7.5 mi51527 Defiance · 8.6 mi51432 Aspinwall · 9.6 mi51543 Kimballton · 10.2 mi51537 Harlan · 10.3 mi51578 Westphalia · 11.1 mi51455 Manning · 11.4 mi

About ZIP 51446

ZIP code 51446 is assigned to Irwin, Iowa. It lies in Shelby County. Its Census area covers about 35.78 square miles of land. The closest neighboring ZIP is 51447 (Kirkman), about 3.8 miles away.

Every address in 51446 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