Back مقاطعة ماسون (إلينوي) Arabic Mason County, Illinois BAR Мейсан (акруга, Ілінойс) Byelorussian Мейсън (окръг, Илинойс) Bulgarian মেশন কাউন্টি, ইলিনয়স BPY Mason Gông (Illinois) CDO Мейсон (гуо, Иллинойс) CE Mason County (kondado sa Tinipong Bansa, Illinois) CEB Mason County, Illinois Welsh Mason County (Illinois) German
Mason County | |
|---|---|
 Mason County Courthouse, Havana | |
 Location within the U.S. state of Illinois | |
 Illinois's location within the U.S. | |
| Coordinates: 40°14′N 89°55′W / 40.24°N 89.91°W | |
| Country |  United States |
| State |  Illinois |
| Founded | 1841 |
| Named for | George Mason |
| Seat | Havana |
| Largest city | Havana |
| Area | |
| • Total | 563 sq mi (1,460 km2) |
| • Land | 539 sq mi (1,400 km2) |
| • Water | 24 sq mi (60 km2) 4.3% |
| Population (2020) | |
| • Total | 13,086 |
| • Estimate (2021) | 12,881 |
| • Density | 23/sq mi (9.0/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 15th |
| Website | www |
Mason County is a county in the U.S. state of Illinois. According to the 2020 census, it had a population of 13,086.[1] Its county seat is Havana.[2] The county is named in honor of George Mason, a member of the Virginia legislature who campaigned for the adoption of the United States Bill of Rights.
- ^ "QuickFacts". United States Census Bureau. Retrieved January 23, 2023.
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.