ZIP Code 52231 - Harper Iowa

ZIP Code 52231 is located in Harper Iowa. Portions of 52231 are also in Lafayette Township (Keokuk County) and Plank Township and Clear Creek Township (Keokuk County). 52231 is entirely within Keokuk County. Regionally, it is located in the Cedar Rapids-Waterloo-Iowa City and Dubuque Area.

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ZIP Code 52231 Quick Stats

ZIP Code NameHarper
Primary CountyKeokuk County
ZIP Code TypeStandard
Population (2022)439
Area Code(s)319 / 641
Current Time
CDT

ZIP Code 52231 Map

52231 Demographics

52231 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 52231 is White. The current unemployment level in 52231 is 3.6%.

Population439
Population Growth Rate97.35%
Population Density10 People per Square Mile
Total Households114
Median Household Income (2021)$64,375
Average Adjusted Gross Income (2020)$67,840
Current Unemployment Rate (April 2024)3.6%
Majority Race/EthnictyWhite - 99.18%

52231 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White36199.18%
Black10.27%
Hispanic00%
Asian10.27%
Native American10.27%
Hawaiian/Pac. Islander00%

52231 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College2212.87%
Bachelor Degree3017.54%
High School Diploma7141.52%
No High School Diploma10.58%
GED or Alternate31.75%
1 or More Years of College2011.7%
Associates Degree2212.87%
Masters Degree21.17%
Professional Degree00%
Doctorate Degree00%

52231 Geography

Coordinates41.36464310,-92.06693268
Adjacent ZIP Codes
Cities/Towns in 52231
RegionCedar Rapids-Waterloo-Iowa City and Dubuque Area
Time ZoneCentral Daylight Time
IANA TimezoneAmerica/Chicago
Area43 Square Miles

52231 Politics

US Congressional Districts in 52231
Iowa State Senate Districts in 52231
Iowa State House of Representatives Districts in 52231

52231 Weather and Climate Data

Plant Hardiness ZoneZone 5b: -15F to -10F
Average First Frost DateOctober 11 - 20
Average Last Frost DateApril 21 - 31
Koppen-Geiger Climate ZoneDfa - Humid Continental Hot Summers
Ecoregion47f - Rolling Loess Prairies

52231 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)11162738505964615241281739
Avg Max Temp (°F)29354861728186847664473360
Avg Precip (In.)1.091.072.293.534.44.274.314.213.742.742.561.4535.66

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