Water service in Mchenry County may be provided by the county water authority, individual municipal water departments, or rural water districts, depending on where a property is located. There are 3 Water Departments locations in Mchenry County, Illinois.

Property owners in Mchenry County who are connecting a new building to public water or requesting a new meter installation should contact the applicable water department well in advance, as permit review, inspection scheduling, and tap fee collection may take several weeks before service can begin.

List of Mchenry County, Illinois Water Departments

Harvard Water Department

View Details Call Now (815) 943-6468

Harvard Water Department

Address
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Hours

Marengo Water Department

View Details Call Now (815) 568-7112

Marengo Water Department

Address
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Hours

Woodstock Waste Water

View Details Call Now (815) 338-1874

Woodstock Waste Water

Address
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Hours

Residents of Mchenry County who rely on private wells rather than a public water system should contact the county health department for information about voluntary testing programs. The county water department can advise on whether extending public water service to a private-well property is feasible in your area.

You may also find Water Departments locations in neighboring counties including McHenry.