McHenry City Historical Markers

Map of Illinois State Historical Marker Locations in the City of McHenry

McHenry City Historical Markers

McHenry Courthouse

McHenry County’s First Courthouse

McHenry County's first commissioners met in this building on August 5th, 1840. The original structure was built on the court street side of the p... [click for more]

McHenry General Interest