As of the census of 2010, there were 2,154 people, 801 households, and 546 families living in the village. The population density was. There were 872 housing units at an average density of. The racial makeup of the village was 92.9% White, 0.6% African American, 0.1% Native American, 0.3% Asian, 4.3% from other races, and 1.8% from two or more races. Hispanic or Latino of any race were 8.0% of the population. There were 801 households of which 37.7% had children under the age of 18 living with them, 49.7% were married couplesliving together, 13.1% had a female householder with no husband present, 5.4% had a male householder with no wife present, and 31.8% were non-families. 27.3% of all households were made up of individuals and 11.5% had someone living alone who was 65 years of age or older. The average household size was 2.58 and the average family size was 3.16. The median age in the village was 36.6 years. 27.6% of residents were under the age of 18; 7.4% were between the ages of 18 and 24; 24.4% were from 25 to 44; 25.5% were from 45 to 64, and 15% were 65 years of age or older. The gender makeup of the village was 48.5% male and 51.5% female.
2000 census
As of the census of 2000, there were 2,162 people, 771 households, and 541 families living in the village. The population density was 1,652.0 people per square mile. There were 815 housing units at an average density of 622.7/sq mi. The racial makeup of the village was 96.48% White, 0.23% Black or African American, 0.19% Native American, 0.42% Asian, 1.85% from other races, and 0.83% from two or more races. 3.19% of the population were Hispanic or Latino of any race. There were 771 households out of which 38.1% had children under the age of 18 living with them, 55.0% were married couples living together, 11.4% had a female householder with no husband present, and 29.8% were non-families. 24.8% of all households were made up of individuals and 12.3% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.27. In the village, the population was spread out with 29.7% under the age of 18, 8.2% from 18 to 24, 27.6% from 25 to 44, 19.8% from 45 to 64, and 14.7% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 90.1 males. For every 100 females age 18 and over, there were 83.1 males. The median income for a household in the village was $45,987, and the median income for a family was $54,514. Males had a median income of $38,167 versus $25,189 for females. The per capita income for the village was $18,015. About 4.5% of families and 7.2% of the population were below the poverty line, including 6.3% of those under age 18 and 13.7% of those aged 65 or over.
Transportation
Clinton was served by the Chicago, Milwaukee, St. Paul and Pacific Railroad, better known as the Milwaukee Road, and the Chicago and North Western Railroad. It was on the Racine & Southwestern branch line of the Milwaukee Road and on the C&NW line between Harvard, Illinois, and Janesville, Wisconsin. In its 1980 bankruptcy, the Milwaukee Road disposed of the Southwestern Line. The Union Pacific Railroad, which took over the C&NW, operates today in Clinton on former C&NW tracks and on a remnant of the former Milwaukee Road west to Beloit, where it provides a rail connection to Fairbanks-Morse.