Walterhill, also known as Walter Hill, is a census-designated place in Rutherford County, Tennessee. The population was 401 at the 2010 census. Walterhill is the site of the 34-acre Walterhill Floodplain State Natural Area, established to support a rare plant species found in the Stones River floodplain, the Stones River bladderpod. Walterhill is best known in the local area for being the site of Allied Waste Industries' Middle Point landfill.