Request Speed Watch

Some areas are prone to excessive speeding or other serious traffic violations. If you are aware of one of these areas within unincorporated McHenry County, please let us know so that we may better enforce speed limits.

Request Speed Watch

If you'd like us to call with a response

Contact Directory

The McHenry County Sheriff's Office

Jail Main Office: 815-338-9396

Jail Visitation: 815-334-4745


Civil Process Division: 815-334-4720

Community Relations: 815-334-4739

Records Divisions: 815-334-4770


Crime Stoppers: 800-762-STOP

Detectives: 815-334-4750

Patrol (Main Office): 815-334-4480

Patrol (Algonquin Substation): 847-829-9259

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