Correctionville was platted in 1855. It was so named from its location on a surveyors' correction line. A post office called Correctionville has been in operation since 1862.
As of the census of 2010, there were 821 people, 331 households, and 208 families residing in the city. The population density was. There were 391 housing units at an average density of. The racial makeup of the city was 97.2% White, 0.2% African American, 0.6% Native American, 0.9% Asian, 0.1% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 2.3% of the population. There were 331 households of which 29.0% had children under the age of 18 living with them, 49.2% were married couplesliving together, 8.5% had a female householder with no husband present, 5.1% had a male householder with no wife present, and 37.2% were non-families. 33.8% of all households were made up of individuals and 17.8% had someone living alone who was 65 years of age or older. The average household size was 2.36 and the average family size was 3.00. The median age in the city was 42.8 years. 22.8% of residents were under the age of 18; 8.2% were between the ages of 18 and 24; 21% were from 25 to 44; 25.4% were from 45 to 64; and 22.8% were 65 years of age or older. The gender makeup of the city was 51.0% male and 49.0% female.
2000 census
As of the census of 2000, there were 851 people, 343 households, and 230 families residing in the city. The population density was 1,484.5 people per square mile. There were 392 housing units at an average density of 683.8 per square mile. The racial makeup of the city was 97.65% White, 0.12% Native American, 0.24% Asian, 1.65% from other races, and 0.35% from two or more races. Hispanic or Latino of any race were 3.88% of the population. There were 343 households out of which 28.0% had children under the age of 18 living with them, 53.6% were married couples living together, 9.9% had a female householder with no husband present, and 32.9% were non-families. 30.0% of all households were made up of individuals and 18.7% had someone living alone who was 65 years of age or older. The average household size was 2.38 and the average family size was 2.95. Age/Gender Breakdown: 24.3% under the age of 18, 7.5% from 18 to 24, 23.0% from 25 to 44, 19.9% from 45 to 64, and 25.3% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 97.0 males. For every 100 females age 18 and over, there were 87.2 males. The median income for a household in the city was $24,615, and the median income for a family was $35,000. Males had a median income of $28,250 versus $21,389 for females. The per capita income for the city was $16,074. About 12.6% of families and 17.4% of the population were below the poverty line, including 24.9% of those under age 18 and 13.1% of those age 65 or over.
