Much of the county is included within the Ozark Highlands American Viticultural Area (AVA).
Phelps County comprises the Rolla, Missouri Micropolitan Statistical Area. population in 2000 fell within Phelps County. Representative and Governor of Missouri John Smith Phelps.Īccording to the U.S. The county was organized on November 13, 1857, and was named for U.S. The largest city and county seat is Rolla. As of the 2020 United States Census, the population was 44,638. Phelps County is a county in the central portion of the U.S. Old county courthouse, listed on the National Register of Historic Places