The Mercer Island Police Department provides a full range of police services while respecting individual rights and freedoms.
The mission of the Mercer Island Police Department is to contribute to Mercer Island's reputation as a safe, friendly, economically thriving community in which to live, work, learn, play and visit.
We achieve our mission by providing the highest quality law enforcement and community education services possible within the resources provided to us.
We are professional, compassionate, highly-trained, technologically-advanced, and provide services that meet or exceed the expectations of our community.
We provide a wide range of services to the people who live and work on Mercer Island. Information about our services is readily available through this site.
The Police Department is divided into the Police Operations unit and the Administrative Services unit. Police Operations includes the Marine Patrol and the Patrol Section. Administrative Services includes the Criminal Investigations Section (Detectives), the Services Section (Dispatch, Records, and Evidence Room), and a Training and Personnel Sergeant.
The following are some of the services provided:
In the case of an emergency please dial 9-1-1.
- Routine patrol, including enforcement of criminal and traffic laws
- Answering calls for service and taking appropriate police action
- Follow-up investigations of criminal cases
- Bicycle patrol of the Central Business District and the I-90 Right of Way
- Marine Patrol in the waters of Mercer Island, Bellevue, and Renton
- Community Oriented Policing and Emergency Management Programs
To report a non-emergency incident or to reach the 24 hour dispatch center, call 425-577-5656.
For records requests or general information, please call 206-275-7610.
To submit a crime tip, click here.
For firearms safe storage information "Lok-It-Up," click here
For employment information click here.
Sept 2, 2019 - At approximately 10:30pm, Mercer Island Police responded to loud music coming from a boat offshore in the 7700 block of West Mercer Way. Officers responded in our Marine Patrol Boat and found the vessel which was still playing loud music. The boat, a red 20’ ski-type boat, was fo... Read more...
Update on Mercer Island Cougar Sighting (8/28)
Aug 28, 2019 - At this time, the only confirmed sightings remain August 5 and 6, due to video evidence. On those dates, security cameras captured overnight footage of a cougar (aka: mountain lion) near Pioneer Park on Mercer Island. Since then, various other potential sightings have been c... Read more...
Cougar Sighting Near Pioneer Park (8/5)
Aug 5, 2019 - Early Monday morning, August 5, the Mercer Island Police Department (MIPD) was alerted to a cougar prowling overnight in the vicinity of Pioneer Park, and it was observed clearly on security camera footage at approx 6400 East Mercer Way before dawn.
The State Department of Wildlife ... Read more...
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