Find a Community Services Office (CSO)

Type in your 5 digit zip code and/or select your county to find the closest CSO.


White Center CSO # 44

Counties Served: King

1-877-501-2233
TTY 1-800-209-5446
or use 711

What is the Physical Address of the office?

9650 15th Ave SW Suite 200
Seattle, WA 98106

Apply for Services Online

Where should you send client documents?

DSHS CSD - Customer Service Center
PO BOX 11699
Tacoma, WA 98411-6699
Fax Number (toll-free) 1-888-338-7410

What is the Mailing Address of the office?
Please note: this phone and address is for office business use, not client cases.

Admin Phone | 206-716-2300
Admin Fax | 206-764-4384



White Salmon Branch CSO #20

Counties Served: Klickitat, Skamania

1-877-501-2233
TTY 1-800-209-5446
or use 711

What is the Physical Address of the office?

221 N. Main Ave
White Salmon, WA 98672-1150

Apply for Services Online

Where should you send client documents?

DSHS CSD - Customer Service Center
PO BOX 11699
Tacoma, WA 98411-6699
Fax Number (toll-free) 1-888-338-7410

What is the Mailing Address of the office?
Please note: this phone and address is for office business use, not client cases.

Phone: 509-493-6140
Fax: 509-493-1882

Admin Phone | 509-667-6000
Admin Fax | 509-664-6340



Yakima CSO (39)

Counties Served: Yakima

1-877-501-2233
TTY 1-800-209-5446
or use 711

What is the Physical Address of the office?

1002 North 16th Avenue
Yakima, WA 98902
Fax: 509-454-4389

Apply for Services Online

Where should you send client documents?

DSHS CSD - Customer Service Center
PO BOX 11699
Tacoma, WA 98411-6699
Fax Number (toll-free) 1-888-338-7410

What is the Mailing Address of the office?
Please note: this phone and address is for office business use, not client cases.

PO Box 12500, B39-1
Yakima, WA 98909-2500

Admin Phone | 509-225-6200
Admin Fax | 509-454-4332