Police and sheriff · California

Law Enforcement Agencies in Alameda County, California

28 agenciesFBI UCR list

The FBI's Uniform Crime Reporting program lists 28 law enforcement agencies in Alameda County, California: the county sheriff's office, 14 city or town police departments, 6 state police posts, 3 campus police departments and 4 other agencies.

Sheriff's Office and County Police in Alameda County

  • Alameda County Sheriff's OfficeCounty sheriff or police · ORI CA0010000 · NIBRS since 2022

City and Town Police Departments in Alameda County

  • Alameda Police DepartmentCity or town police · ORI CA0010100 · NIBRS since 2021
  • Albany Police DepartmentCity or town police · ORI CA0010200 · NIBRS since 2021
  • Berkeley Police DepartmentCity or town police · ORI CA0010300 · NIBRS since 2023
  • Dublin Police DepartmentCity or town police · ORI CA001300X · NIBRS since 2022
  • Emeryville Police DepartmentCity or town police · ORI CA0010400 · NIBRS since 2021
  • Fremont Police DepartmentCity or town police · ORI CA0010500 · NIBRS since 2022
  • Hayward Police DepartmentCity or town police · ORI CA0010600 · NIBRS since 2022
  • Livermore Police DepartmentCity or town police · ORI CA0010700 · NIBRS since 2023
  • Newark Police DepartmentCity or town police · ORI CA0010800 · NIBRS since 2021
  • Oakland Police DepartmentCity or town police · ORI CA0010900
  • Piedmont Police DepartmentCity or town police · ORI CA0011000 · NIBRS since 2022
  • Pleasanton Police DepartmentCity or town police · ORI CA0011100 · NIBRS since 2025
  • San Leandro Police DepartmentCity or town police · ORI CA0011200 · NIBRS since 2025
  • Union City Police DepartmentCity or town police · ORI CA0011300 · NIBRS since 2022

State Police in Alameda County

  • Highway Patrol: Dublin Area OfficeState police · ORI CA0019990 · NIBRS since 2021
  • Highway Patrol: Golden Gate Investigative Services UnitState police · ORI CA0019916 · NIBRS since 2021
  • Highway Patrol: Hayward Area OfficeState police · ORI CA0019945 · NIBRS since 2021
  • Highway Patrol: Mission Grade Commercial Vehicle Enforcement FacilityState police · ORI CA0019991 · NIBRS since 2021
  • Highway Patrol: Nimitz Commercial Vehicle Enforcement FacilityState police · ORI CA0019947 · NIBRS since 2021
  • Highway Patrol: Oakland Area OfficeState police · ORI CA0019970 · NIBRS since 2021

State Agencies in Alameda County

  • California State Parks: Diablo RangeState agency · ORI CA0014100 · NIBRS since 2021

College and University Police in Alameda County

  • California State University: East BayCollege or university police · ORI CA0011500 · NIBRS since 2021
  • Ohlone Community CollegeCollege or university police · ORI CA0011600 · NIBRS since 2026
  • University of California: BerkeleyCollege or university police · ORI CA0019700 · NIBRS since 2022

Other Law Enforcement Agencies in Alameda County

  • East Bay Regional Parks: Alameda CountyOther agency · ORI CA0011400 · NIBRS since 2022
  • San Francisco Bay Area Rapid Transit: Alameda CountyOther agency · ORI CA0012100 · NIBRS since 2024
  • Union Pacific Railroad: Alameda CountyOther agency · ORI CA001320X · NIBRS since 2025

Where People Arrested in Alameda 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 Alameda County?
The FBI lists 28 law enforcement agencies in Alameda County, including 14 city or town police departments. The full list is on this page.
Who runs the jail in Alameda County?
In most counties the sheriff runs the county jail. In Alameda County that is the Alameda County Sheriff's Office. See Alameda 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 CA0019970. It is useful when you request records or read crime statistics.