The Washington Federation of State Employees Local 304 represents over 2,200 workers who work in King County, including the following agencies, colleges and employers:

• American Behavioral Health Systems
• American Friends Service Committee
• Attorney General's Office
• Bellevue College
• Board of Industrial Insurance Appeals
• Consolidated Technology Services
• Criminal Justice Training Center
• Dept of Agriculture
• Dept of Commerce
• Dept of Early Learning
• Dept of Ecology
• Dept of Enterprise Services
• Dept of Health
• Dept of Licensing
• Dept of Natural Resources
• Dept of Services for the Blind
• Eastern Washington University
• Employment Security Department
• Green River College
• Healthcare Authority
• Human Rights Commission
• Insurance Commissioner
• Licquor Control & Cannabis Board
• Renton Technical College
• Seattle Colleges
• Secretary of State
• Shoreline College
• WA Horse Racing Commission
• WA State Lottery
• WA State Patrol Crime Lab
• Western Washington University