Mason County, Illinois
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Mason County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 14,666. Its county seat is Havana. Mason County was created in 1841 and named for George Mason.
References[change | change source]
- "State & County QuickFacts". United States Census Bureau. Archived from the original on July 14, 2011. Retrieved July 7, 2014. Cite uses deprecated parameter
- "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07. Cite uses deprecated parameter