50131   Zip Code Johnston Polk IA United States

City Johnston
County Polk
State Iowa
Latitude 41.69749
Longitude -93.72021
Population 24,388
Density 1029.79 people per square mile
Time Zone America/Chicago
  • All demographic data comes from the 2023 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

< 5K> $150K0102030

Median household: $103,316
Median individual: $54,681

Race

WhiteBlackAsianOther

Mode: 80.5% White

Gender

 50.9% female 

Rent

  $1284 / month  

Median house value: $344,561.0

Age

0%1%2%3%4%5%6%7%8%9%10%11%12%13%14%15%10-1930s50s70s

Median: 38.5 years old

Education

< High SchoolHigh SchoolSome CollegeBachelorsGrad School

With at least college degree: 58.0%
With STEM degree: 40.7%

Marital Status

 60.4% married 

Never married: 24.7%

Labor Force Participation

 71.1% working 

Unemployed: 1.8%

Average Family Size

 3.08 people 

Commute Time

 19.3 minutes 

Health Care

 2.3% uninsured 

Poverty

 7.6%

All data comes from the SimpleMaps US Zips Comprehensive Database, January 2025.

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