Courthouses in La Grande, Oregon, the US. Courthouses locations in La Grande, Oregon. 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 La Grande Union County Circuit Court Courthouse +1 541-962-9500 1105 K Avenue, La Grande, Oregon 97850 Write a review Phone Website Directions