Dallas County, Missouri

Dallas County is a county located in the U.S. state of Missouri. As of the 2010 census, the population was 16,777. Its county seat is Buffalo. The county was organized in 1842 as Niangua County and then renamed in 1844 for George M. Dallas, who served as Vice President under James K. Polk.Dallas County is part of the Springfield, MO Metropolitan Statistical Area.GeographyAccording to the U.S. Census Bureau, the county has a total area of, of which is land and (0.4%) is water.Adjacent countiesCamden County (north)Laclede County (east)Webster County (south)Greene County (southwest)Polk County (west)Hickory County (northwest)Major highways25px U.S. Route 6525px Route 3225px Route 6425px Route 73