Schleswig is a city in Crawford County, Iowa, United States. The population was 830 at the time of the 2020 census. History Schleswig was laid out in 1899. The city was named after the Schleswig in Germany and Denmark, from which the original settlers came. Geography Schleswig is located at (42.163614, -95.434944). According to the United States Census Bureau, the city has a total area of , of which is land and is water. Demographics 2010 census As of the census of 2010, there were 882 people, 377 households, and 246 families living in the city. The population density was . There were 419 housing units at an average density of . The racial makeup of the city was 92.9% White, 0.6% African American, 0.1% Asian, 0.1% Pacific Islander, 4.4% from other races, and 1.9% from two or more races. Hispanic or Latino of any race were 6.9% of the population. There were 377 households, of which 28.9% had children under the age of 18 living with them, 53.6% were married couples living together, 7.2% had a female householder with no husband present, 4.5% had a male householder with no wife present, and 34.7% were non-families. 29.4% of all households were made up of individuals, and 15.4% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.89. The median age in the city was 43.8 years. 25.3% of residents were under the age of 18; 5.4% were between the ages of 18 and 24; 20.4% were from 25 to 44; 27.9% were from 45 to 64; and 21% were 65 years of age or older. The gender makeup of the city was 48.0% male and 52.0% female. 2000 census As of the census of 2000, there were 833 people, 368 households, and 248 families living in the city. The population density was . There were 411 housing units at an average density of . The racial makeup of the city was 99.76% White, 0.12% Asian, and 0.12% from two or more races. Hispanic or Latino of any race were 1.08% of the population. There were 368 households, out of which 25.0% had children under the age of 18 living with them, 58.7% were married couples living together, 6.0% had a female householder with no husband present, and 32.6% were non-families. 31.5% of all households were