Back مقاطعة جونسون (آيوا) Arabic جانسون بؤلگهسی، ایووا AZB Johnson County, Iowa BAR Джонсън (окръг, Айова) Bulgarian জনসন কাউন্টি, আইৱা BPY Johnson Gông (Iowa) CDO Джонсон (гуо, Айова) CE Johnson County (kondado sa Tinipong Bansa, Iowa) CEB Johnson County, Iowa Welsh Johnson County (Iowa) German
Johnson County | |
|---|---|
 | |
 Seal | |
 Location within the U.S. state of Iowa | |
 Iowa's location within the U.S. | |
| Coordinates: 41°40′00″N 91°35′00″W / 41.666666666667°N 91.583333333333°W | |
| Country |  United States |
| State |  Iowa |
| Founded | December 21, 1837 |
| Named for | Richard Mentor Johnson (1837–2020) Lulu Johnson (since 2020) |
| Seat | Iowa City |
| Largest city | Iowa City |
| Area | |
• Total | 623 sq mi (1,610 km2) |
| • Land | 614 sq mi (1,590 km2) |
| • Water | 9.1 sq mi (24 km2) 1.5% |
| Population (2020) | |
• Total | 152,854 |
• Estimate (2023)[1] | 157,528  |
| • Density | 250/sq mi (100/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 1st |
| Website | www |
Johnson County is located in the U.S. state of Iowa. As of the 2020 census, the population was 152,854,[2] making it the fourth-most populous county in Iowa. The county seat is Iowa City,[3] 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.[4]
- ^ "County Population Totals and Components of Change: 2020-2023". census.gov. US Census Bureau. Retrieved May 16, 2024.
- ^ "2020 Census State Redistricting Data". census.gov. United states Census Bureau. Retrieved August 12, 2021.
- ^ "Find a County". National Association of Counties. Archived from the original on May 3, 2015. Retrieved June 7, 2011.
- ^ United States Office of Management and Budget. "Update of Statistical Area Definitions and Guidance on Their Uses" (PDF). pp. 5, 36. Archived from the original (PDF) on May 14, 2006. Retrieved July 21, 2006.