Skip to main content
King County logo

King County Archives Update

King County Archives continues to offer remote reference services via email and telephone, (206) 263-2480. Our building renovation is complete, and we are moving staff and the collections back on-site. We hope to resume in-person reference later this year.

Due to the high volume of reference requests, our response times are between 15-20 business days. To help us fill your request as quickly as possible, please provide as much specific information as you can, such as document or recording numbers and dates of purchase (if relevant), as well as names, places, or addresses.

King County Archives
1215 E. Fir Street
Seattle, Washington 98122


Mission Statement

Our mission is to serve the public and agencies of King County by collecting, preserving, holding in trust, and facilitating access to County records of enduring historical value that document its land, people, culture, and governance. Through our service, we strive to foster appreciation and understanding of King County's origins and continuing history.


We are a repository of historical King County government records, which are open to public view. Over three hundred collections comprising over 18,000 cubic feet, some dating back to 1853, serve as a permanent source of information about activities, programs, and decisions of County agencies and elected officials. Our records are in many formats, including paper, photographs, maps, and audio-visual materials.

They include legislative records: County Commissioner's resolutions (1853-1968) and County Council ordinances and motions (1969-1999), a special collection of over 6,000 County documents, pre-charter legislation, administration and policy decisions, early road and bridge establishment and inspection records and records and policies from former County Executives.

Some King County government records are also held by the Puget Sound Regional Branch of the Washington State Archives, which began collecting materials before the establishment of the King County Archives program in 1990.

Research Hours and Policies

Copy and Service Fees


TTY Relay 711

The King County Archives building is currently closed, but our remote customer service hours are 9am-4pm, Monday through Friday.