Mason County Map, Illinois
Detailed road and geographic map of Mason County.
County Information
- State: Illinois
- FIPS Code: 17125
- Population: 13,086
- Area (sq mi): 539.2
- Density: 24.3/sq mi
- Growth Trend: -0.5%
- Households: 6,626
- Election Data: Democrat
- Climate Zone: Cold/Continental
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Overview
Mason County is located in the U.S. state of Illinois. It has a land area of approximately 539.2 square miles.