Amidon is a city in and the county seat of Slope County, North Dakota. With a recorded population of 20 at the 2010 census, it is the second least populated county seat in the country. The city was established in 1910 in anticipation of railroad construction, which never took place.It has a total area of 0.6 square miles, all of which is land.
Transportation, sales and services and educational services are the major commercial activities here. Public schooling comprises an elementary school. The closest hospital is St. Joseph's Hospital and Health Center, located about 37 miles away in Dickinson. The cost of living here is 26.40% lower than the country average.
The town gets 15 inches of rain annually. The number of days with measurable precipitation annually is 74. Snowfall is about 28 inches per year.