Courthouses in Locust Grove, Oklahoma, the US. Courthouses locations in Locust Grove, Oklahoma. Find the nearest courthouses locations, near you. All types of business services Accounting ATM Bank Courthouse Finance Funeral home Insurance Lawyer Real estate School All courthouses in Locust Grove Locust Grove Court Clerk Courthouse +1 918-479-2300 103 Broadway Street, Locust Grove, Oklahoma 74352 Write a review Phone Directions