County
· Iowa
Johnson County
Johnson County is located in the U.S. state of Iowa. As of the 2020 census, the population was 152,854, and was estimated to be 160,044 in 2025, making it the fourth-most populous county in Iowa. The county seat and the largest city is Iowa City, home of the University of Iowa. Johnson County is included in the Iowa City metropolitan area, which is also included in the Cedar Rapids-Iowa City Corridor Combined Statistical Area.
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Cities and towns 11
- City of Coralville pop. 22,949
- City of Hills pop. 902
- City of Iowa City pop. 74,596
- City of Lone Tree pop. 1,355
- City of North Liberty pop. 20,875
- City of Oxford pop. 723
- City of Shueyville pop. 736
- City of Solon pop. 3,086
- City of Swisher pop. 919
- City of Tiffin pop. 5,282
- City of University Heights pop. 1,229
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 185367
- FIPS state
- 19
- FIPS county
- 103
- FIPS place
- 99103
- Census record name
- COUNTY OF JOHNSON
- Mailing address
- 913 S DUBUQUE ST, IOWA CITY 52240