ZIP Code 52321 - Onslow Iowa

52321 Overview

ZIP Code 52321 is located in Onslow Iowa. Portions of 52321 are also in Clay Township (Jones County) and Madison Township (Jones County) and Wyoming Township and Scotch Grove Township. 52321 is entirely within Jones County. Regionally, 52321 is located in the Cedar Rapids-Waterloo-Iowa City and Dubuque Area.

Stats Demographics Geography Politics Climate Related Pages

ZIP Code 52321 Quick Stats

ZIP Code NameOnslow
Primary CountyJones County
ZIP Code TypeStandard
Population (2022)458
Area Code(s)563
Current Time
CST

ZIP Code 52321 Map

52321 Demographics

52321 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 52321 is White. The current unemployment level in 52321 is 3.0%.

Population458
Population Growth Rate12.18%
Population Density15 People per Square Mile
Total Households220
Median Household Income (2021)$55,893
Average Adjusted Gross Income (2021)$155,750
Current Unemployment Rate (December 2024)3.0%
Majority Race/EthnictyWhite - 93.52%

52321 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White46293.52%
Black224.45%
Hispanic61.21%
Asian00%
Native American40.81%
Hawaiian/Pac. Islander00%

52321 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College5717.48%
Bachelor Degree5817.79%
High School Diploma12137.12%
No High School Diploma00%
GED or Alternate82.45%
1 or More Years of College309.2%
Associates Degree5215.95%
Masters Degree00%
Professional Degree00%
Doctorate Degree00%

52321 Geography

Coordinates42.14281464,-90.97335815
Adjacent ZIP Codes
Cities/Towns in 52321
RegionCedar Rapids-Waterloo-Iowa City and Dubuque Area
Metropolitan/Micropolitan Stat AreaCedar Rapids, IA
Time ZoneCentral Standard Time
IANA TimezoneAmerica/Chicago
Area30 Square Miles

52321 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
Ecoregion47f - Rolling Loess Prairies

52321 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)8142537485862605039271537
Avg Max Temp (°F)27334559718184827462453258
Avg Precip (In.)1.191.262.293.333.964.533.684.583.52.452.511.6334.91

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