Whiteside County Courthouse | State of Illinois Office of the Illinois Courts Whiteside County Courthouse Circuit District: 4 | Circuit: 14thWhiteside County 200 East Knox StreetMorrison, IL - Illinois 61270 (815) 772-5188 Visit Website Get Directions Links Administrative Orders e-Filing Whiteside County Directory Resources Court Disability Coordinator Sue Costello(815) 772-5170scostello@whiteside.org Local Rules / Orders View Local Rules Remote Proceedings View Remote Proceeding Information