Home > IA > Pottawattamie County > Avoca > Zip 51521

Zip Code 51521 — Avoca, IA

51521 is a ZIP Code associated with Avoca, IA, located within Pottawattamie. 51521 ranks #4 out of 16 ZIP codes in Pottawattamie County by population (and #285 out of 970 in IA). The area supports an estimated population of 1,953 residents across Data Pending housing units, with a population density of 8.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.479870, -95.345260)

Data MetricLocal Statistic
Postal / Zip Code51521
Primary CityAvoca
State / ProvinceIA
CountyPottawattamie
Total Population1,953
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density8.6 people/sq mi
TimezoneAmerica/Chicago

How 51521 Compares

MetricZIP 51521Pottawattamie CountyIA State Average
Population1,95392,784 (Total)3,210,984 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density8.6 /sq mi----
County Pop Rank#4 of 16----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 51570Shelby6.7 mi1,118N/A
Zip 51536Hancock6.7 mi613N/A
Zip 51577Walnut7.4 mi1,561N/A
Zip 51553Minden11.3 mi998N/A
Zip 51560Oakland11.6 mi1,772N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →