McHenry County, Illinois

• Algonquin@
• Barrington Hills@
• Cary@
• Crystal Lake@
• Fox Lake@
• Fox River Grove@
• Harvard@
• Hebron@
• Huntley@
• Island Lake@

• Johnsburg@
• Lake in the Hills@
• Lakemoor@
• Lakewood@
• Marengo@
• McHenry@
• Richmond@
• Ringwood@
• Wonder Lake@
• Woodstock@

• Census Bureau QuickFacts: McHenry County  - Features county geography, household, population, housing, and business data.
• McHenry County  - Provides the official departments and elected officers, emergency readiness, and human services.
• McHenry County Economic Development Corporation  - A nonprofit business advocacy group comprised of business and industry investors working to encourage and develop the economic health of the county. Includes county profile data.
• McHenry County Fair  - Includes fair schedule, fair book, camping, Queen pageant, grounds map, past results, photos and directions.
• McHenry County Genealogy: ILGenWeb  - Provides county history and data for genealogy research. Includes biographies, diaries, cemetery listing by township, photos and other resources.
• McHenry County History and Genealogy  - Provides genealogical and historical data including obituaries, cemeteries, biographies, death records, census, newspaper extracts and historical resources.
• National Register of Historical Places: McHenry County, Illinois  - Detailed list of places with historical significance. Information about the historic function, significance, architectural style, and builder.