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McHenry County
Sign in to saveAlso known as McHenry County, Illinois, McHenry County, IL
county in Illinois, United States
Key facts
- Country
- United States
- State
- Illinois
- Founded
- January 16, 1836
- Named after
- William McHenry
- Seat
- Woodstock
- Largest city
- Crystal Lake
- Total
- 611 sq mi (1,580 km )
- Land
- 603 sq mi (1,560 km )
- Water
- 7.6 sq mi (20 km ) 1.3%
- Estimate 2025
- 317,751
- Density
- 514/sq mi (199/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Congressional districts
- 9th , 10th , 11th , 16th
- Website
- www .mchenrycountyil .gov
via Wikipedia infobox
Wikidata facts
- Country
- United States
- Located in
- Illinois
- Contains
- Alden
- Capital
- Woodstock
- Population
- 310229
- Area
- 1563
- Shares border with
- Boone County
- Official website
- www.co.mchenry.il.us
- Image
- WoodstockILCourtHJail.JPG
- Households
- 113269
Show 8 more facts
- different from
- McHenry County
- category of associated people
- Category:People from McHenry County, Illinois
- Commons category
- McHenry County, Illinois
- topic's main category
- Category:McHenry County, Illinois
- inception
- 1836-00-00
- water as percent of area
- 1.3
- native label
- McHenry County
- per capita income
- 40545
Sources (8)
via Wikidata · CC0
~20 min read
Encyclopedic overview
McHenry County is located in the U.S. state of Illinois. According to the 2020 Census, it had a population of 310,229, making it the sixth-most populous county in Illinois. Its county seat is Woodstock. McHenry County is one of the five Illinois collar counties in the Chicago metropolitan area. Long known as a center of recreation along with agriculture in the western portion, it has recently experienced rapid rates of suburbanization, exurbanization and urbanization, but the western segment of the county remains primarily agricultural and rural.
History
Excerpted from Wikipedia’s “McHenry County” article, available under the CC BY-SA 4.0 licence.