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ZIP Code 51521 - Avoca Iowa

Overview

ZIP Code 51521 is located in Avoca Iowa. Portions of 51521 are also in Knox Township (Pottawattamie County) and Fairview Township (Shelby County) and Pleasant Township (Pottawattamie County) and Valley Township (Pottawattamie County) and Monroe Township (Shelby County) and Layton Township and Shelby Township and Minden Township. 51521 is primarily within Pottawattamie County, with some portions in Shelby County. Regionally, 51521 is located in the Omaha Area.

ZIP Code 51521 Quick Stats

ZIP Code NameAvoca
Primary CountyPottawattamie County
ZIP Code TypeStandard
Population (2022)1,857
Area Code(s)712
Current Time
CDT

ZIP Code 51521 Map

Map of ZIP Code 51521 in Avoca, IA — click to open interactive map

51521 Demographics

51521 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Iowa based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 51521 is White. The majority race/ethnicity attending public schools in 51521 is White. The current unemployment level in 51521 is 3.3%.

Population1,857
Population Growth Rate-10.99%
Population Density22 People per Square Mile
Total Households823
Percentage High Income Households3.3%
Median Household Income (2021)$61,114
Average Adjusted Gross Income (2021)$309,040
Current Unemployment Rate (May 2026)3.3%
Sales Tax Rate (2025)7%
Majority Race/EthnicityWhite - 99.07%
Public School Majority Race/EthnicityWhite - 91.97%

51521 Race/Ethnicity Breakdown

Race/EthnicityTotalPercentage
White1,70199.07%
Black00%
Hispanic120.7%
Asian00%
Native American40.23%
Hawaiian/Pac. Islander00%

51521 Public School Race/Ethnicity Breakdown

Race/EthnicityTotalPercentage
White67694.68%
Black40.56%
Hispanic283.92%
Asian30.42%
Native American30.42%
Hawaiian/Pac. Islander00%

51521 Educational Attainment Levels

Highest Education LevelTotalPercentage
Less Than 1 Year of College1017.92%
Bachelor Degree13910.89%
High School Diploma53541.93%
No High School Diploma131.02%
GED or Alternate493.84%
1 or More Years of College16212.7%
Associates Degree22017.24%
Masters Degree413.21%
Professional Degree110.86%
Doctorate Degree50.39%

51521 Geography

51521 Weather and Climate Data

Plant Hardiness ZoneZone 5a: -20F to -15F
Average First Frost DateOctober 1 - 10
Average Last Frost DateMay 1 - 10
Koppen-Geiger Climate ZoneDfa - Humid Continental Hot Summers
Ecoregion47e - Steeply Rolling Loess Prairies
51521 Annual Climate Data
JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)9152637495964615139261437
Avg Max Temp (°F)29354861738285837664463360
Avg Precip (In.).8.882.223.314.424.494.323.723.822.521.81.0333.34

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