Customer Service
Contact Information
King County Treasury Operations, King Street Center, 201 S. Jackson St, Suite 710, Seattle, WA 98104
Property Tax Information and Customer Service
206-263-2890 or PropertyTax.CustomerService@kingcounty.gov
Mobile Homes/Commercial Personal Property
206-263-2844 or Treasury.PersonalProperty@kingcounty.gov
Tax Foreclosures
206-263-2649 or TaxForeclosures@kingcounty.gov
Maintenance Assessment Management Systems/Local Improvement Districts
206-263-1893 or mams.lid@kingcounty.gov