King County
Sheriff’s Office (KCSO)
Complete local guide to King County Sheriff’s Office in Washington — inmate search, jail roster, warrant lookup, arrest records, phone numbers, address, visitation rules, and every service explained step by step for Seattle, Bellevue, Renton, Kent, Redmond, Kirkland, Auburn, and all surrounding King County communities.
The King County Sheriff’s Office (KCSO) is the primary law enforcement agency for unincorporated King County and 12 contract cities in Washington state. Serving Seattle, Bellevue, Renton, Kent, Redmond, Kirkland, Auburn, and all surrounding communities, KCSO provides patrol services, executes warrants, and supports public safety across one of the most populous counties in the Pacific Northwest. The agency works closely with the King County Department of Adult and Juvenile Detention (DAJD) for jail operations.
Whether you need to locate a loved one in custody, check for active warrants, request arrest records, schedule visitation, or simply find the right phone number and address, this complete guide gives you everything in clear, step-by-step instructions with direct official links, verified contact details, and practical local tips from the Greater Seattle area.
What Is the King County Sheriff’s Office (KCSO)?
The King County Sheriff’s Office serves as the main law enforcement agency for unincorporated areas of King County, Washington, and provides contracted services to multiple cities. It handles patrol, investigations, warrant service, and supports the county’s jail system through coordination with DAJD. The agency is headquartered in downtown Seattle and operates in a high-volume urban and suburban environment.
kingcounty.gov/en/dept/sheriff is the only official source for general information, while inmate searches are managed through the Department of Adult and Juvenile Detention.
King County Sheriff’s Office Phone Number, Address & Locations
Service | Address | Phone Number | Use For |
|---|---|---|---|
Headquarters / Administration | 516 Third Avenue, Seattle, WA 98104 | General inquiries and non-emergency | |
Jail Inquiries / DAJD | King County Correctional Facility | Inmate status and jail questions | |
Emergency | All King County | Life-threatening emergencies |
KCSO Headquarters — Map & Location
King County Sheriff’s Office Inmate Search — How to Find Anyone in Jail
Use the King County Subject Lookup Tool to find current custody status, location, and booking information for adults in King County jails. Jail inquiries can also be made by calling (206) 296-1234.
How to Search the King County Inmate Database — Step by Step
- 1Go to the Official Portal
Open the Subject Lookup tool.
- 2Enter Search Criteria
Use last name, first name, or date of birth.
- 3Review the Results
View custody status, facility location, and booking details.
- 4Take Next Action
Note important information and call (206) 296-1234 for further assistance if needed.
King County Warrant Search
Check for active warrants through official King County resources.
Contact KCSO at (206) 296-4155 for warrant status or use official channels. If you suspect an active warrant, consult a criminal defense attorney before contacting law enforcement.
Additional Official Resources & Local Tips for King County Residents
Useful links and practical advice for the Seattle / Bellevue area:
- Non-Emergency Reporting: Call (206) 296-4155 for non-emergency incidents.
- Public Records Requests: Submit via the official KCSO website for arrest records and other documents.
- Visitation Information: Contact the Department of Adult and Juvenile Detention at (206) 296-1234 for current jail visitation rules and schedules. Valid photo ID is required.
King County experiences very high activity due to its large population and tourism in the Seattle area. Residents in Bellevue, Renton, Kent, and Redmond often recommend starting with the online Subject Lookup tool. Be prepared with accurate personal details when calling. Beware of common phone scams impersonating KCSO or jail staff demanding immediate payment — official agencies will never ask for payment over the phone for warrants or bonds. Business hours are best for detailed assistance.