Police and sheriff · Illinois

Law Enforcement Agencies in Will County, Illinois

41 agenciesFBI UCR list

The FBI's Uniform Crime Reporting program lists 41 law enforcement agencies in Will County, Illinois: the county sheriff's office, 34 city or town police departments, 3 campus police departments and 3 other agencies.

Sheriff's Office and County Police in Will County

  • Will County Sheriff's OfficeCounty sheriff or police · ORI IL0990000 · NIBRS since 2021

City and Town Police Departments in Will County

  • Aurora Police DepartmentCity or town police · ORI IL0450100 · NIBRS since 2022
  • Beecher Police DepartmentCity or town police · ORI IL0990100 · NIBRS since 2021
  • Bolingbrook Police DepartmentCity or town police · ORI IL0990200 · NIBRS since 2021
  • Braidwood Police DepartmentCity or town police · ORI IL0990300 · NIBRS since 2021
  • Channahon Police DepartmentCity or town police · ORI IL0991800 · NIBRS since 2021
  • Coal City Police DepartmentCity or town police · ORI IL0320100 · NIBRS since 2021
  • Crest Hill Police DepartmentCity or town police · ORI IL0990400 · NIBRS since 2021
  • Crete Police DepartmentCity or town police · ORI IL0990500 · NIBRS since 2021
  • Diamond Police DepartmentCity or town police · ORI IL0996000 · NIBRS since 2021
  • Elwood Police DepartmentCity or town police · ORI IL0991700 · NIBRS since 2021
  • Frankfort Police DepartmentCity or town police · ORI IL0990600 · NIBRS since 2021
  • Godley Police DepartmentCity or town police · ORI IL0996100 · NIBRS since 2021
  • Homer Glen Police DepartmentCity or town police · ORI IL099900X · NIBRS since 2021
  • Joliet Police DepartmentCity or town police · ORI IL0990700 · NIBRS since 2021
  • Lemont Police DepartmentCity or town police · ORI IL0166000 · NIBRS since 2021
  • Lockport Police DepartmentCity or town police · ORI IL0990800 · NIBRS since 2021
  • Manhattan Police DepartmentCity or town police · ORI IL0991600 · NIBRS since 2021
  • Minooka Police DepartmentCity or town police · ORI IL0320600 · NIBRS since 2022
  • Mokena Police DepartmentCity or town police · ORI IL0992200 · NIBRS since 2021
  • Monee Police DepartmentCity or town police · ORI IL0990900 · NIBRS since 2020
  • Naperville Police DepartmentCity or town police · ORI IL0221400 · NIBRS since 2021
  • New Lenox Police DepartmentCity or town police · ORI IL0991500 · NIBRS since 2021
  • Orland Park Police DepartmentCity or town police · ORI IL0168300 · NIBRS since 2022
  • Park Forest Police DepartmentCity or town police · ORI IL0168800 · NIBRS since 2021
  • Peotone Police DepartmentCity or town police · ORI IL0991000 · NIBRS since 2021
  • Plainfield Police DepartmentCity or town police · ORI IL0991100 · NIBRS since 2021
  • Rockdale Police DepartmentCity or town police · ORI IL0991200 · NIBRS since 2021
  • Romeoville Police DepartmentCity or town police · ORI IL0991300 · NIBRS since 2021
  • Shorewood Police DepartmentCity or town police · ORI IL0992100 · NIBRS since 2021
  • Steger Police DepartmentCity or town police · ORI IL0168A00 · NIBRS since 2021
  • Tinley Park Police DepartmentCity or town police · ORI IL0165M00 · NIBRS since 2021
  • University Park Police DepartmentCity or town police · ORI IL0992000 · NIBRS since 2021
  • Wilmington Police DepartmentCity or town police · ORI IL0991400 · NIBRS since 2021
  • Woodridge Police DepartmentCity or town police · ORI IL0222400 · NIBRS since 2022

College and University Police in Will County

  • Governors State UniversityCollege or university police · ORI IL0992400
  • Joliet Junior CollegeCollege or university police · ORI IL0993100 · NIBRS since 2021
  • Lewis UniversityCollege or university police · ORI IL099929E · NIBRS since 2021

Other Law Enforcement Agencies in Will County

  • Elgin, Joliet and Eastern RailwayOther agency · ORI IL099269E
  • Lockport Township Park DistrictOther agency · ORI IL0993200 · NIBRS since 2023
  • Will County Forest PreserveOther agency · ORI IL0993000 · NIBRS since 2021

Where People Arrested in Will County Are Held

In most U.S. counties, adults arrested by city police, the sheriff or state troopers are booked into the county jail first. Some larger cities run their own holding jail, so if a person is not on the county roster, call the arresting department.

Law Enforcement in Other Illinois Counties

Agency names, types and ORI codes come from the FBI Crime Data Explorer agency list, retrieved November 2026. NIBRS dates show when an agency began reporting incident-level crime data to the FBI.

Frequently Asked Questions

How many police departments are in Will County?
The FBI lists 41 law enforcement agencies in Will County, including 34 city or town police departments. The full list is on this page.
Who runs the jail in Will County?
In most counties the sheriff runs the county jail. In Will County that is the Will County Sheriff's Office. See Will County Adult Detention Facility on this site for the jail's roster or contact details.
What is an ORI number?
An ORI is the nine-character identifier the FBI assigns to each law enforcement agency for crime reporting, for example IL0992200. It is useful when you request records or read crime statistics.