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About Us
Administration
Dispatch
Records
Civil Process
Court Security
Business Office
Garage
Custodial Staff
About the Sheriff’s Office
Command Staff
General Orders
Merit Commission
Operations
Patrol Division
K9 Unit
Marine Patrol
Motorcycle Unit
Snowmobile Unit
SWAT
Traffic Unit
Major Crash Investigation Unit
Investigations
CID
Evidence
Intel/Apprehension
Narcotics
Special Services
Training with MCSO
Training
Community Relations
Media Relations
Police Social Work
Community
Alarm & Key Registration
IL Sex Offenders
Crime Mapping
Crime Stoppers
Civil Process
Citizen’s Police Academy
Cadets
Foreclosure
Most Wanted
Premise Alert Program
School & Daycare Resources
Traffic & Security Details
Volunteers
Victim Resources
Corrections
About the Jail
Inmate Programming
Inmate Worker Program
Special Response Units
P.R.E.A.
Jail Volunteer
Information
Inmate Search
Post Bond
Victim Notification
Contact An Inmate
Commissary Funds
Contact Us
Press Releases
General Questions
Community Survey
FOIA Request
Request Speed Watch
Request House Watch
Compliments & Complaints
Join Us!
Apply Now!
Positions
Patrol Deputy
Corrections Officer
Court Security Officer
Marine Unit Deputy
Telecommunicator
Police Social Worker
Work With Us
Lateral Transfer
Squad Car Eligibility
Testing Dates
POWER Test
Internships
Eligibility List
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Petersen Park
Petersen Park
Petersen Park
4300 Peterson Park Road
McHenry
,
IL
60050
Map
Petersen Park
Upcoming Events
3:00 pm
–
8:00 pm
,
August 5, 2025
–
National Night Out
