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Most King County offices will be closed on Monday, May 28, for Memorial Day.  
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How to Contact King County Developmental Disabilities Division

King County Developmental Disabilities Division
401 Fifth Avenue
Suite 520
Seattle, WA 98104

ddd@kingcounty.gov
Phone: 206-263-9105
Fax: 206-205-1632
TTY: 711 Relay Service

Staff:
If you wish to contact a specific individual click on the County Directory for KCDDD employees

Office Hours:
8 a.m. - 5 p.m.


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Contact Us

Phone 206-263-9105

TTY Relay Service: 711

Fax: 206-205-1632