Johnston, IA 50131 ZIP Code Profile

Related Place Profiles:
Camp Dodge, IA | Johnston, IA | Urbandale, IA

ZIP Code 50131: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Johnston, IA 50131

Acceptable Alternative
Urbandale, IA 50131

Not Acceptable, USPS
Camp Dodge, IA 50131

  • ZIP Code Type: STANDARD
  • County: Polk County
  • Centroid: Latitude 41.683, Longitude -93.71
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes
  • Businesses Addresses: 747
  • PO Box Addresses: 202
  • Residential Addresses: 9,038
    • Multi-Family Addresses: 1,274
    • Single Family Addresses: 7,764

The ZIP Code maps and database are updated 4 times per year.
Database updated: August 1, 2018, Maps updated: August 1, 2018.

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Johnston, IA 50131 Data & Demographics (As of July 1, 2018)


Total Population 22,564
Population in Households 22,324
Population in Familes 18,983
Population in Group Qrtrs 240
Population Density1 985
Diversity Index2 27


Median Household Income $102,160
Average Household Income $131,643
Per Capita Income $48,430


Total Housing Units 8,455 (100%)
Owner Occupied HU 6,347 (75.1%)
Renter Occupied HU 1,927 (22.8%)
Vacant Housing Units 181 ( 2.1%)
Median Home Value $248,044
Average Home Value $287,289


Total Households 8,274
Average Household Size 2.7
Family Households 5,948
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 3.22% 2.33%
Households 3.12% 2.27%
Families 2.89% 2.18%
Median Household Income   0.57%
Per Capita Income   1.43%

Johnston, IA 50131 - Peer Comparisons by Rank and Percentile

The table below compares 50131 to the other 961 ZIP Codes in Iowa by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 36 96th
Population Density # 58 94th
Diversity Index # 118 88th
Median Household Income # 8 99th
Per Capita Income # 8 99th

Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.

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