McHenry County, County seat city in northeastern Illinois, United States
McHenry County spans 611 square miles of land with lakes, parks, and recreational areas across the northeastern region of Illinois state.
The county formed in 1836 from Cook and LaSalle counties, receiving its name from Major William McHenry, a prominent Illinois Militia officer.
The Historic Woodstock Opera House in the county seat presents theatrical performances, concerts, and art exhibitions throughout the year.
The county maintains multiple school districts, colleges, government offices, and public transportation systems connecting to the Chicago metropolitan area.
McHenry County Conservation District manages natural areas where visitors observe native wildlife and geological formations shaped by ancient glaciers.
Location: Illinois
Inception: 1836
Capital city: Woodstock
Shares border with: Walworth County, Kenosha County, Lake County, Cook County, Kane County, DeKalb County, Boone County
Website: http://co.mchenry.il.us
GPS coordinates: 42.32000,-88.45000
Latest update: June 10, 2025 04:30
Illinois Railway Museum
12.1 km
Woodstock Opera House
1.3 km
Volo Bog State Natural Area
22 km
Mineola Hotel
24.4 km
George Stickney House
6.9 km
Moraine Hills State Park
16.6 km
Black Point
27 km
Hackmatack National Wildlife Refuge
7 km
Old McHenry County Courthouse
588 m
Goebbert's Farm
24.3 km
Charles H. Hibbard House
15.6 km
Count's House
14.9 km
Woodstock Square Historic District
630 m
Col. Gustavus A. Palmer House
14.9 km
Terwilliger House
6.9 km
Memorial Hall
21 km
Orson Rogers House
14.9 km
Wauconda Area Library
25.7 km
St. Mary's Church of Gilberts
24.6 km
Christian Geister House
21.5 km
Main Beach
13 km
Woodstock Water Works
1.8 km
Richmond
21 km
Indian Trail Beach
18.6 km
Richardson Maze
25.2 km
West Beach
11.9 km
Woodstock Theatre
524 m
Lucien Boneparte Covell House
20.8 kmReviews
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