Rolla, Missouri

Rolla is the county seat and largest city of Phelps County, Missouri. It had a population of 19,559 at the 2010 census. Located about halfway between St. Louis and Springfield, Missouri, at the intersection of Interstate 44 and U.S. Route 63, Rolla is a natural crossroads for south-central Missouri and one of the most important economic hubs for the northern Ozarks region, benefiting as well from the presence of the Missouri University of Science and Technology.