Each agency will update its pages with current information. Order Online Tickets Tickets See Availability. King County Correctional Facility Reports 16 New Coronavirus Cases King County Correctional Facility 500 5th Ave Seattle WA 98104. King county correctional facility . The King County Correctional Facility in Seattle reported a coronavirus outbreak in its facility where at least 16 people tested positive for the virus. The MRJC opened its doors on March 24 1997 and currently employs over 300 correctional staff. As the Pacific Northwests largest jail system we are proud to employ a great number of those who serve our nation as they transition to. The King County Correctional Facility allows inmates to receive pre-metered postcards like the type purchased from the post office. Many King County services are continually adapting because of the COVID-19 pandemic. King Countys correctional facilities in Seattle and Kent are reporting a significant Covid-19 outbreak.