Find the last 4 digits (ZIP+4) for an address in 51521

ZIP 51521, Avoca, IA is filled in. Just type the street address.

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ZIP Code 51521 – Avoca, IA

Avoca, Iowa · Pottawattamie County · Central time

ZIP code51521
CityAvoca
StateIowa
CountyPottawattamie CountyShelby County
Population1,953
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area87.41 sq mi
Center (lat, long)41.4855, -95.3447

Area codes in this area

712

These are the area codes that most often serve ZIP 51521 (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

51593 Harlan · 1.3 mi51570 Shelby · 6.9 mi51536 Hancock · 7.1 mi51577 Walnut · 7.4 mi51553 Minden · 11.5 mi51537 Harlan · 11.6 mi51552 Marne · 11.9 mi51560 Oakland · 12.2 mi

About ZIP 51521

ZIP code 51521 is assigned to Avoca, Iowa. It crosses 2 counties; most of its land is in Pottawattamie County. Its Census area covers about 87.41 square miles of land. The closest neighboring ZIP is 51593 (Harlan), about 1.3 miles away.

Every address in 51521 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