McHenry County Map, Illinois
Detailed road and geographic map of McHenry County.
County Information
- State: Illinois
- FIPS Code: 17111
- Population: 310,229
- Area (sq mi): 603.2
- Density: 514.3/sq mi
- Growth Trend: +1.2%
- Households: 119,708
- Election Data: Republican
- Climate Zone: Mixed/Moderate
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Overview
McHenry County is located in the U.S. state of Illinois. It has a land area of approximately 603.2 square miles.