Courthouses in Watertown, South Dakota, the US. Courthouses locations in Watertown, South Dakota. Find the nearest courthouses locations, near you. All types of business services Accounting ATM Bank Courthouse Finance Funeral home Insurance Lawyer Real estate School Travel University All courthouses in Watertown Clerk of Court Courthouse +1 605-882-5095 14 1st Avenue Southeast, Watertown, South Dakota 57201 Write a review Phone Website Directions