Courthouses in Princeton, Missouri, the US. Courthouses locations in Princeton, Missouri. Find the nearest courthouses locations, near you. All types of business services ATM Bank Courthouse Finance Insurance Lawyer Real estate School All courthouses in Princeton Mercer County Associates Cts Courthouse +1 660-748-4232 802 East Main Street, Princeton, Missouri 64673 Write a review Phone Directions Mercer County Circuit Clerk Courthouse +1 660-748-4335 802 East Main Street, Princeton, Missouri 64673 Write a review Phone Website Directions