Contact Us

Seattle Library

Location and Mailing Address:

King County Law Library
King County Courthouse
516 3rd Ave., Suite W621
Seattle, WA 98104

Phone: (206) 477-1305

MRJC Library

Location and Mailing Address:

King County Law Library
Maleng Regional Justice Center
401 Fourth Ave. N, Room 1N
Kent, WA 98032-2905

Phone: (206) 477-1316


Contact Either Branch:

  • Hours: 8:00am-4:30pm
  • Connect with us live via video reference during regular business hours.
  • If you leave us a voicemail, we can return your call.  (NOTE: you must be able to accept calls from a “blocked number.”)
  • Or email us:


2021 Closures:

COVID-19 Note: Both branches of King County Law Library are closed to the public until authorized by the Governor to reopen physically.  However, KCLL IS providing services REMOTELY!

In addition to the following closures, the MRJC Law Library branch typically closes at noon on the last Friday of the month for staff training.

Friday, January 1, 2021: New Year’s Day

Monday, January 18, 2021: Martin Luther King Jr. Day

Monday, February 15, 2021: President’s Day

Monday, May 31, 2021: Memorial Day

Monday, July 5, 2021: Independence Day (observed)

Monday, September 6, 2021: Labor Day

Thursday, November 11, 2021: Veterans’ Day

Thursday, November 25, 2021: Thanksgiving Day

Friday, November 26, 2021: Native American Heritage Day

Friday, December 24, 2021: Christmas Day (observed)

Friday, December 31, 2021: New Year’s Day (observed)