Columbia County Courthouse WEBSITE ADD TO Trip Planner Domed, blond-brick building built in 1905 from a Renaissance Revival-style design by W.W. Hall. Five colorful murals can be viewed in the town's historic downtown square nearby. Get Directions Gas Calculator Details Website: http://Magnoliachamber.com Phone: 870-234-2542 Address: # 1 Court SquareMagnolia, AR 71753 Things to Do In Magnolia EXPLORE Business Closed? Yes No Incorrect Information? Yes No What needs to be changed?