Back مقاطعة جونسون (إلينوي) Arabic Johnson County, Illinois BAR Джонсън (окръг, Илинойс) Bulgarian জোন্সোন কাউন্টি, ইলিনয়স BPY Johnson Gông (Illinois) CDO Джонсон (гуо, Иллинойс) CE Johnson County (kondado sa Tinipong Bansa, Illinois) CEB Johnson County, Illinois Welsh Johnson County (Illinois) German Κομητεία Τζόνσον (Ιλινόι) Greek
Johnson County | |
|---|---|
 Johnson County Courthouse in Vienna | |
 Location within the U.S. state of Illinois | |
 Illinois's location within the U.S. | |
| Coordinates: 37°28′N 88°52′W / 37.46°N 88.87°W | |
| Country |  United States |
| State |  Illinois |
| Founded | 1812 |
| Named for | Richard Mentor Johnson |
| Seat | Vienna |
| Largest city | Vienna |
| Area | |
• Total | 349 sq mi (900 km2) |
| • Land | 344 sq mi (890 km2) |
| • Water | 4.9 sq mi (13 km2) 1.4% |
| Population (2020) | |
• Total | 13,308 |
• Estimate (2023) | 13,326  |
| • Density | 38/sq mi (15/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 12th |
Johnson County is a county in the U.S. state of Illinois. According to the 2020 census, it has a population of 13,308.[1] Its county seat is Vienna.[2] It is located in the southern portion of Illinois known locally as "Little Egypt".
- ^ "Johnson County, Illinois". United States Census Bureau. Retrieved June 9, 2023.
- ^ "Find a County". National Association of Counties. Archived from the original on May 9, 2015. Retrieved June 7, 2011.