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 Back to: IL, United States.  
County Population: 260,077 
County Houses: 92,908 
Land area: 603.5 sq. mi. 
Water area: 7.6 sq. mi. 
Industries providing employment: Manufacturing (21.4%), Educational,health and social services (15.6%), Retail trade (12.0%). 
Races in McHenry County: 
- White Non-Hispanic (89.6%)
 
- Hispanic (7.5%)
 
- Other race (2.8%)
 
- Two or more races (1.1%)
 
- Black (0.6%)
 
 (Total can be greater than 100% because Hispanics could be counted in other races)  
 
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