ZIP Code 50131 - Johnston Iowa

ZIP Code 50131 is located in Johnston Iowa. Portions of 50131 are also in Grimes and Urbandale and Jefferson Township (Polk County) and Webster Township (Polk County) and Saylorville Reservoir. 50131 is entirely within Polk County. Regionally, it is located in the Des Moines-Ames Area.

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ZIP Code 50131 Quick Stats

ZIP Code NameJohnston
Primary CountyPolk County
ZIP Code TypeStandard
Population (2022)23,967
Area Code(s)515
Current Time
CDT

ZIP Code 50131 Map

50131 Demographics

50131 can be classified socioeconomically as 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 50131 is White. The majority race/ethnicity attending public schools in 50131 is White. The current unemployment level in 50131 is 2.3%.

Population23,967
Population Growth Rate0.00%
Population Density850 People per Square Mile
Total Households6,271
Percentage High Income Households13.7%
Median Household Income (2021)$92,743
Average Adjusted Gross Income (2021)$505,510
Current Unemployment Rate (May 2024)2.3%
Majority Race/EthnictyWhite - 80.45%
Public School Majority Race/EthnictyWhite - 70.31%

50131 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White18,95380.45%
Black2,3259.87%
Hispanic7463.17%
Asian1,5136.42%
Native American210.09%
Hawaiian/Pac. Islander00%

50131 Public School Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White5,14974.19%
Black6779.76%
Hispanic5107.35%
Asian5928.53%
Native American110.16%
Hawaiian/Pac. Islander10.01%

50131 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College5184.75%
Bachelor Degree3,80334.9%
High School Diploma1,79516.47%
No High School Diploma870.8%
GED or Alternate1531.4%
1 or More Years of College1,28011.75%
Associates Degree9578.78%
Masters Degree1,48813.66%
Professional Degree4464.09%
Doctorate Degree3693.39%

50131 Geography

Coordinates41.69840240,-93.72070312
Adjacent ZIP Codes
Cities/Towns in 50131
RegionDes Moines-Ames Area
Metropolitan/Micropolitan Stat AreaDes Moines-West Des Moines, IA
Time ZoneCentral Daylight Time
IANA TimezoneAmerica/Chicago
Area28 Square Miles

50131 Politics

US Congressional Districts in 50131
Iowa State Senate Districts in 50131
Iowa State House of Representatives Districts in 50131

50131 Weather and Climate Data

Plant Hardiness ZoneZone 5a: -20F to -15F
Average First Frost DateOctober 1 - 10
Average Last Frost DateApril 21 - 31
Koppen-Geiger Climate ZoneDfa - Humid Continental Hot Summers
Ecoregion47b - Des Moines Lobe

50131 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)10162738506065625241281639
Avg Max Temp (°F)28354760728185837564463359
Avg Precip (In.).841.012.163.354.344.894.234.193.162.542.031.1233.87

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