County

McHenry County

Illinois

312,591 population$104,802 median income241,502 voting age0 active campaigns

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Officials Representing McHenry County

Congressional District Coverage

McHenry County is 49% in IL Congressional District 11, 22% in IL Congressional District 10, 22% in IL Congressional District 16, and 8% in IL Congressional District 9.

Area-weighted; population-weighted shares may differ in counties with large urban/rural density splits.

Median Income

$104,802

↑ 26%vs $83,390

Bachelor's+

35.2%

↓ 7%vs 37.9%

Under 18

22.7%

↑ 4%vs 21.9%

Owner-Occupied

82.7%

↑ 23%vs 67.1%

White (non-Hispanic)

79.5%

↔ 30%vs 61.0%

Demographics

American Community Survey 2024 5-year estimates

Race & Ethnicity

White79.5%

Hispanic/Latino16.1%

Black1.5%

Asian3.1%

Two or More10.8%

Other5.0%

Income & Economy

Median Household Income$104,802

Per Capita Income$49,388

Poverty Rate6.2%

Unemployment4.7%

Education

High School+93.7%

Bachelor's+35.2%

Housing

Median Home Value$308,100

Median Rent$1,401

Owner-Occupied82.7%

Health Insurance

Uninsured4.5%

Age Distribution

Under 1822.7%

65 and Over16.5%

Median Age40.7