Welcome to Mason County, Illinois. Mason County Courthouse 125 North Plum Street Havana, Illinois 62644-0077. Courthouse Hours: Monday – Friday 8:00am to 4 ...
Mason County is a county in the U.S. state of Illinois. According to the 2020 census, it had a population of 13,086. Its county seat is Havana. The county is named in honor of George Mason, a member of the Virginia legislature who campaigned for... Wikipedia
Cities: Havana, Mason City, Bath, and more
Population: 12,748 (2022)
County seat: Havana
Area: 563 mi²
Congressional district: 15th
Named for: George Mason
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Mason County, Illinois has 539.4 square miles of land area and is the 48th largest county in. Illinois. by total area. Mason County, Illinois is bordered by.
Mason County was established in 1841 and is known as "The Imperial Valley of the Midwest." It is bordered by the Sangamon and Illinois Rivers, ...
Havana IL 62644-0077. Phone: 309-543-6661. The Mason County Board meets the second Tuesday of each month at 9:00 a.m. at the Courthouse, in Havana Illinois.