Courthouses in Colby, Kansas, the US. Courthouses locations in Colby, Kansas. Find the nearest courthouses locations, near you. All types of business services Accounting ATM Bank Courthouse Finance Funeral home Insurance Lawyer Real estate School University All courthouses in Colby Colby City Municipal Court Courthouse +1 785-460-4446 300 North Court Avenue, Colby, Kansas 67701 Write a review Phone Directions Thomas County Probate Judge Courthouse +1 785-460-4545 300 North Court Avenue, Colby, Kansas 67701 Write a review Phone Directions