DeWitt is a city in Clinton County, Iowa, United States. The population was 5,322 at the 2010 census, which represented a 5.2% increase over that of 2000, making it the fastest growing city in Clinton County.
As of the census of 2010, there were 5,322 people, 2,208 households, and 1,415 families residing in the city. The population density was. There were 2,306 housing units at an average density of. The racial makeup of the city was 97.1% White, 0.8% African American, 0.1% Native American, 0.4% Asian, 0.2% from other races, and 1.5% from two or more races. Hispanic or Latino of any race were 1.9% of the population. There were 2,208 households of which 32.4% had children under the age of 18 living with them, 50.9% were married couples living together, 10.2% had a female householder with no husband present, 3.0% had a male householder with no wife present, and 35.9% were non-families. 31.5% of all households were made up of individuals and 15.9% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.99. The median age in the city was 39.7 years. 25.3% of residents were under the age of 18; 7.4% were between the ages of 18 and 24; 24.1% were from 25 to 44; 26% were from 45 to 64; and 17.2% were 65 years of age or older. The gender makeup of the city was 47.4% male and 52.6% female. The median income for a household in the city was $44,720, and the median income for a family was $54,063. Males had a median income of $37,951 versus $25,457 for females. The per capita income for the city was $19,717. About 2.8% of families and 6.2% of the population were below the poverty line, including 4.1% of those under age 18 and 10.1% of those age 65 or over.
DeWitt is served by the Union Pacific along the south side. Until 1971, the Milwaukee Road entered DeWitt from the north and ran along 12th Street before crossing the tracks of the former Chicago & Northwestern south into Scott County. The tracks between DeWitt and Eldridge Junction were abandoned in 1931. The Milwaukee Road rail between Maquoketa and DeWitt was abandoned by 1970. What had served as the Chicago & Northwestern's Depot was destroyed by fire circa 1969 and never rebuilt. The depot for the Milwaukee Road's Depot was at the northeast corner of 7th and 12th streets. It was converted into commercial use.
Area Highways
DeWitt is served by U.S. Highways 30 & 61. At one time the highways met at the northwest corner of the City Park to the north of the city center business district. By 1980 both highways were moved to new alignments around the south and west sides of DeWitt. This was first suggested in a plan from the early 1960s.
