issued for the machinery in the ore processing plant. This mine became the principal mine of the new Mississippi Valley Iron Company of St. Louis, Missouri in 1916. That year, the mine produced 10,151 tons of concentrated ore, and in 1917, it produced 22,612 tons. In 1918 the mine produced over 7000 tons before it was shut down because of World War I. The mine never recovered from this shutdown, and the equipment was sold for scrap in 1937. Iron Mine Drive and Allamakee Street cross north of the sites of both old mines (). Geography Waukon is located at (43.268889, -91.479212). The headwaters of the north branch of Paint Creek are in Waukon, and the town is just south of the headwaters of Village Creek. This is on the west edge of the deeply eroded Driftless Area of northwest Iowa. The town sits on a plain underlain by the Galena Limestone formation. There are many sinkholes in this plain south of Waukon. To the north, a tongue of Galena Limestone underlies Iron Hill. According to the United States Census Bureau, the city has a total area of , all land. Climate Demographics 2020 census As of the census of 2020, the population was 3,827. The population density was . There were 1,939 housing units at an average density of . The racial makeup of the city was 95.5% White, 0.7% Black or African American, 0.3% Native American, 0.1% Asian, 1.2% from other races, and 2.2% from two or more races. Ethnically, the population was 2.7% Hispanic or Latino of any race. 2010 census As of the census of 2010, there were 3,897 people, 1,781 households, and 1,008 families residing in the city. The population density was . There were 1,946 housing units at an average density of . The racial makeup of the city was 98.4% White, 0.4% African American, 0.1% Native American, 0.1% Asian, 0.3% from other races, and 0.7% from two or more races. Hispanic or Latino of any race were 1.4% of the population. There were 1,781 households, of which 24.3% had children under the age of 18 living with them, 43.0% were married couples living together, 9.4% had a female householder with no husband present, 4.2% had a male householder with no wife present, and 43.4% were non-families. 37.5% of all households were made up of individuals, and 18% had someone living alone who was