Niarada is a census-designated place in Flathead and Sanders counties in Montana, United States. The population was 27 at the 2010 census, down from 50 in 2000. Niarada is located at 47°50′40″N 114°33′31″W / 47.844532°N 114.558638°W. Montana Highway 28 passes through the CDP, leading east 13 miles to Elmo on Flathead Lake and south 34 …Niarada is a census-designated place in Flathead and Sanders counties in Montana, United States. The population was 27 at the 2010 census, down from 50 in 2000. Niarada is located at 47°50′40″N 114°33′31″W / 47.844532°N 114.558638°W. Montana Highway 28 passes through the CDP, leading east 13 miles to Elmo on Flathead Lake and south 34 miles to Plains on the Clark Fork.