McHenry County State's Atty's Office Back to Search McHenry County State's Atty's Office Categories Government Offices 2200 N. Seminary Ave., Suite 150 , Woodstock , IL , 60098 United States (815) 334-4159 Send Email https://www.mchenrycountyil.gov/county-government/departments-j-z/state-s-attorney-s-office Share × Print Email Facebook LinkedIn Twitter Pinterest Powered By GrowthZone