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New Mailing Address Format For The Downtown Civic Center Campus

Because of U.S. Postal Service requirements, the City of Seattle has implemented a new mailing address format for offices located in the buildings comprising the downtown Civic Center campus - City Hall, Justice Center, and Seattle Municipal Tower. The following list identifies the P.O. box and street addresses that should be used when sending mail to certain City agencies. To ensure your mail to the City is handled efficiently, you must use the P.O. box in addition to the street addressees.

Click here to read more about the reasons behind changes in the City mailing procedures.