Johnson County, Iowa
Johnson County: County in Iowa, United States
About
Johnson County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 130,882 and a population density of 81 people per km². After 10 years in 2020 county had an estimated population of 153,740 inhabitants. Its county seat is Iowa City. The county was created 187 years ago in 1837.
![Johnson County locator map](https://cdn.mapsof.net/images/486/4862732/johnson-county-ia-locator-map-image_187824.png)
Quick Facts about Johnson County
Population : | 153,740 (2020) |
Country : | United States of America |
State : | Iowa (United States) |
Different from : | Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County |
Area : | 1614 km2 |
Water as percent of area : | 1.5% |
Land as percent of area : | 98.5% |
Named for : | Richard Mentor Johnson |
Capital : | Iowa City |
Establishment : | December 12, 1837 |
Time Zone : | America/Chicago |
Local time : | 2/13/2025 - 4:53:13 PM |
Density : | 95 Pop. per km² as of 2020 |
Population growth : | 14.87% (2010-2020) |
![Johnson county courhouse iowa image](https://cdn.mapsof.net/images/486/4862732/johnson-county-ia-image_65060.jpg)
![Johnson county courhouse iowa image](https://cdn.mapsof.net/images/486/4862732/johnson-county-ia-image_65060.jpg)
Geography
Johnson County is located at 41°40'18"N 91°35'17"W (41.6715500, -91.5880800). It has 2 neighbors: Muscatine County and Washington County.
Johnson County map
The largest city of Johnson County is Iowa City with a population of 75,130. Other cities include, Coralville population 22,484, North Liberty population 19,736, Tiffin population 4,629 and Solon population 2,771. See all Johnson County cities & populated places.
Johnson County Populated Places
Cities, towns, neighborhoods & other populated places in Johnson County.
City Name | Population | Title |
---|---|---|
Iowa City | 75,130 | The most populous city in Johnson County, Iowa. |
Coralville | 22,484 | City in Johnson County, Iowa, United States |
North Liberty | 19,736 | City in Johnson County, Iowa, United States of America |
Tiffin | 4,629 | Human settlement in Johnson County, Iowa, United States of America |
Solon | 2,771 | Human settlement in Johnson County, Iowa, United States of America |
Lone Tree | 1,384 | Human settlement in Johnson County, Iowa, United States of America |
University Heights | 1,025 | Town in Johnson County, Iowa, United States |
Swisher | 959 | Human settlement in Johnson County, Iowa, United States of America |
Hills | 834 | Human settlement in Johnson County, Iowa, United States of America |
Oxford | 797 | City in Johnson County, Iowa, United States of America |
Shueyville | 655 | City in Johnson County, Iowa, United States |
- Official Website
Official website of Johnson County
Johnson County has 2 neighbours.
- Muscatine County county in Iowa, United States
- Washington County county in Iowa, United States
- Iowa City
Demographics
The population of Johnson County increased by 14.87% in 10 years.
Year | Population | % Change | Method |
2010 | 130,882 | - | census |
2011 | 134,086 | 2.39% | estimation process |
2012 | 137,103 | 2.2% | estimation process |
2013 | 140,151 | 2.17% | estimation process |
2014 | 142,730 | 1.81% | estimation process |
2015 | 144,943 | 1.53% | estimation process |
2016 | 146,928 | 1.35% | estimation process |
2017 | 149,325 | 1.61% | estimation process |
2018 | 150,549 | 0.81% | estimation process |
2019 | 151,140 | 0.39% | estimation process |
2020 | 153,740 | 1.69% | estimation process |
People born in Johnson County (2)
People born in Johnson County, including prostitute Mattie Blaylock, ornithologist and taxonomist Violet S. Williams, .
List
Other places with the same name (12)
- Johnson County , Kansas county in Wyoming, United States with a population of 607,220 people.
- Johnson County , Texas county in Texas, United States with a population of 179,575 people.
- Johnson County , Indiana county in Indiana, United States with a population of 160,607 people.
- Johnson County , Missouri county in Missouri, United States with a population of 54,219 people.
- Johnson County , Arkansas county in Arkansas, United States with a population of 26,513 people.
- Johnson County , Kentucky county in Kentucky, United States with a population of 22,002 people.
- Johnson County , Tennessee county in Tennessee, United States with a population of 17,849 people.
- Johnson County , Illinois county in Illinois, United States with a population of 12,358 people.
- Johnson County , Georgia county in Georgia, United States with a population of 9,667 people.
- Johnson County , Wyoming county in Wyoming, United States with a population of 8,588 people.
- Johnson County , Nebraska county in Nebraska, United States with a population of 5,057 people.
Iowa Other Counties (more counties)
County Name | Population | Title |
---|---|---|
Indiana | 820,445 | A city located in the state of Iowa. |
Polk County | 494,281 | County in Iowa, United States |
Linn County | 227,854 | County in Oregon, United States |
Des Moines | 212,312 | The capital of Iowa. |
Scott County | 173,216 | County in Tennessee, United States |
Cedar Rapids | 134,027 | The second most populous city in Iowa. |
Black Hawk County | 130,786 | County in Iowa, United States |
Woodbury County | 103,138 | County in Iowa, United States of America |
Davenport | 101,799 | The most populous city in Scott County, Iowa. |
Story County | 98,237 | County in Iowa, United States |
Dubuque County | 97,590 | County in Iowa, United States |
Dallas County | 96,963 | County in Iowa, United States |
Pottawattamie County | 93,328 | County in Iowa, United States of America |
Sioux City | 82,651 | The second most populous city in Iowa. |
Iowa City | 75,130 | The most populous city in Johnson County, Iowa. |
Ankeny | 70,068 | The most populous city in Polk County, Iowa. |