page_title: McHenry County, Illinois
hierarchical_section_title: McHenry County, Illinois
caption_attribution_description: Old McHenry County Ill courthouse and jail in Woodstock
context_page_description: McHenry County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 308,760, making it the sixth-most populous county in Illinois. Its county seat is Woodstock.
  McHenry County is one of the five collar counties of the Chicago-Naperville-Elgin, IL-IN-WI Metropolitan Statistical Area. Long known as a center of agriculture and recreation, it has more recently experienced rapid rates of suburbanization, exurbanization and urbanization, but the northern and western portions of the county remain primarily agricultural and rural.
context_section_description: McHenry County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 308,760, making it the sixth-most populous county in Illinois. Its county seat is Woodstock.
  McHenry County is one of the five collar counties of the Chicago-Naperville-Elgin, IL-IN-WI Metropolitan Statistical Area. Long known as a center of agriculture and recreation, it has more recently experienced rapid rates of suburbanization, exurbanization and urbanization, but the northern and western portions of the county remain primarily agricultural and rural.
caption: Old McHenry County Courthouse in Woodstock
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