Police and sheriff · California

Law Enforcement Agencies in Colusa County, California

5 agenciesFBI UCR list

The FBI's Uniform Crime Reporting program lists 5 law enforcement agencies in Colusa County, California: the county sheriff's office, 2 city or town police departments, 1 state police post and 1 other agency.

Sheriff's Office and County Police in Colusa County

  • Colusa County Sheriff's OfficeCounty sheriff or police · ORI CA0060000 · NIBRS since 2022

City and Town Police Departments in Colusa County

  • Colusa Police DepartmentCity or town police · ORI CA0060100 · NIBRS since 2022
  • Williams Police DepartmentCity or town police · ORI CA0060200 · NIBRS since 2021

State Police in Colusa County

  • Highway Patrol: Williams Area OfficeState police · ORI CA0069955 · NIBRS since 2021

Other Law Enforcement Agencies in Colusa County

  • Union Pacific Railroad: Colusa CountyOther agency · ORI CA0060300 · NIBRS since 2025

Where People Arrested in Colusa 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 California 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 Colusa County?
The FBI lists 5 law enforcement agencies in Colusa County, including 2 city or town police departments. The full list is on this page.
Who runs the jail in Colusa County?
In most counties the sheriff runs the county jail. In Colusa County that is the Colusa County Sheriff's Office. See Colusa County Jail 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 CA0060100. It is useful when you request records or read crime statistics.