Key Peninsula Fire Department (officially Pierce County Fire District #16) provides fire protection, emergency medical services, and rescue operations to the Key Peninsula region in western Pierce County, Washington. Covering approximately 65 square miles, the department serves a rural and suburban population spread across communities like Lakebay, Home, Vaughn, and Longbranch.

The department operates staffed and volunteer stations and offers a range of services including fire suppression, advanced life support (ALS), water and marine rescue, and wildland firefighting. It emphasizes community risk reduction through public education, CPR and first aid training, and fire prevention programs.

Key Peninsula Fire is governed by a board of elected fire commissioners and is supported by a combination of career personnel and volunteers. The department is known for its commitment to serving a geographically challenging area with limited access, all while maintaining a high level of service and community involvement.