Find the last 4 digits (ZIP+4) for an address in 51433

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ZIP Code 51433 – Auburn, IA

Auburn, Iowa · Sac County · Central time

ZIP code51433
CityAuburn
StateIowa
CountySac CountyCalhoun County
Population567
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area56.8 sq mi
Center (lat, long)42.2666, -94.8753

Area codes in this area

712515

These are the area codes that most often serve ZIP 51433 (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

51449 Lake City · 7.2 mi51450 Lake View · 8.2 mi51436 Breda · 8.5 mi50561 Lytton · 10.5 mi51451 Lanesboro · 10.8 mi51452 Lidderdale · 11 mi51466 Wall Lake · 11.5 mi50583 Sac City · 12.8 mi

About ZIP 51433

ZIP code 51433 is assigned to Auburn, Iowa. It crosses 2 counties; most of its land is in Sac County. Its Census area covers about 56.8 square miles of land. The closest neighboring ZIP is 51449 (Lake City), about 7.2 miles away.

Every address in 51433 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