Johnson   County IA United States

County FIPS 19103
Largest City Iowa City
State Iowa
Latitude 41.6715
Longitude -91.5881
Population 156,639
Density 255.6 people per square mile
Time Zone America/Chicago
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
Download the data

Household Income

Median household: $74,935
Median individual: $37,685

Race

Mode: 76.4% White

Gender

 50.3% female 

Rent

  $1122 / month  

Median house value: $309,882.0

Age

Median: 31.0 years old

Education

With at least college degree: 55.1%
With STEM degree: 49.3%

Marital Status

 43.0% married 

Never married: 45.6%

Labor Force Participation

 69.4% working 

Unemployed: 3.8%

Average Family Size

 3.04 people 

Commute Time

 19.4 minutes 

Health Care

 4.7% uninsured 

Poverty

 17.1%

All data comes from the SimpleMaps US Counties Database, 2026.

Home (Maps) | Database License | Privacy | Database Releases | Database Order Lookup | Resources | Contact | FAQs
SimpleMaps.com is a product of Pareto Software, LLC. © 2010-2026.