Marengo, Illinois Police and Jail Information

Marengo is a city in McHenry County, Illinois. According to the United States Census Bureau, the city has a total area of 7.89 square miles (20.44 sq. km). The City of Marengo had a population of approximately 7,648 in the year 2010.

The mayor of Marengo, Illinois is John Koziol. John Koziol can be contacted at (815) 527-1015 and by email at

John Koziol, Mayor
Marengo City Mayor’s Office
City of Marengo
Marengo City Hall
132 E Prairie St,
Marengo, IL 60152
Phone: (815) 527-1015

Marengo City Mayor

Marengo, Illinois Jail and Mugshot Information

Violent crime rate in 2018 Marengo: 33.5 U.S. Average: 207.3
Violent crime rate in 2017 Marengo: 47.3 U.S. Average: 215.2

Facts about crime in Marengo, Illinois:

  • The overall crime rate in Marengo is 70% lower than the national average.
  • For every 100,000 people, there are 2.09 daily crimes that occur in Marengo.
  • Marengo is safer than 83% of the cities in the United States.
  • In Marengo you have a 1 in 132 chance of becoming a victim of any crime.
  • The number of total year over year crimes in Marengo has decreased by 24%.

Marengo, Illinois Police Station Information

Marengo Police Department

The Marengo Police Department has 16 full-time police officers serving a population of approximately 13,500 people.

Paul Fritz, Interim Chief of Police
Marengo Police Department
142 East Prairie Street
Marengo, IL 60152
Phone: (815) 568-7231
Fax: (815) 568-5545

Marengo Police
Marengo Police Facebook

Marengo, Illinois City or County Jail Information

We have not found most wanted information on the Marengo Police Department website. As Marengo is located in McHenry County, we have listed the most wanted list of McHenry County Sheriff’s Office.

McHenry County Most Wanted

The most wanted offenders are listed according to last name, first name, middle name, DOB, sex, race, hair color, eye color, height, weight, convictions, etc.

McHenry County Jail Information

The McHenry County Jail has the capacity of holding 650 inmates. The physical location of the jail is:

McHenry County Jail
2200 North Seminary Avenue
Woodstock, Illinois 60098
Phone: (815) 338-9396

McHenry County Jail Visitations Hours:

Video Visitation:
Every day, 9 a.m. – 9:30 p.m.

9 a.m. – 10:30 a.m.
12 p.m. – 1 p.m.
3 p.m. – 4 p.m.
5 p.m. – 8:30 p.m.

On-Site Visitation:
7 days a week at 0900-0925, 0930-0955, 1000-1025, 1030-1055, 1200-1225, 1230-1300, 1300-1325 and 1330-1400

McHenry County Jail Visitations
McHenry County Jail

Police Records Request in Marengo, Illinois

Police records can be obtained from the Records Department of the Marengo Police Department during normal business hours. Requests may be made completing the fillable/printable Police FOIA Request form which can be mailed, faxed or delivered in–person.

Marengo FOIA Form

The location and reports request contact information is as follows:

Attn: Gillian Mobley, Records Specialist/FOIA Officer
Marengo Police Department – Records Department
142 E. Prairie Street
Marengo, IL 60152
Fax: (815) 568-5545

Police FOIA Request, Marengo Police Department:

Marengo Police FOIA Request

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