Courthouses in Waterloo, New York, the US. Courthouses locations in Waterloo, New York. 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 All courthouses in Waterloo Brownell Ernest Courthouse +1 315-539-4317 655 Dublin Rd, Waterloo, New York 13165 Write a review Phone Directions Supreme Court Courthouse +1 315-539-7021 48 West Williams Street, Waterloo, New York 13165 Write a review Phone Website Directions