La Grange Park is located at . According to the 2010 census, La Grange Park has a total area of, all land.
Demographics
As of the census of 2000, there were 13,295 people, 5,432 households, and 3,516 families residing in the village. The population density was 8,925 people per square mile. There were 5,560 housing units at an average density of 2,467.3 per square mile. The racial makeup of the village was 93.2% White, 3.1% African American, 0.1% Native American, 1.6% Asian, 0% Pacific Islander,.9% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 3.6% of the population. The top five ancestries reported in La Grange Park as of the 2000 census were Irish, German, Polish, Italian and Czech. There were 5,432 households out of which 29.5% had children under the age of 18 living with them, 53.7% were married couplesliving together, 8.3% had a female householder with no husband present, and 35.3% were non-families. 31.7% of all households were made up of individuals and 18.1% 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 3.05. In the village, the population was spread out with 23.7% under the age of 18, 5.3% from 18 to 24, 27.2% from 25 to 44, 22.0% from 45 to 64, and 21.8% who were 65 years of age or older. The median age was 41 years. For every 100 females, there were 84.1 males. For every 100 females age 18 and over, there were 78.8 males. The median income for a household in the village was $58,918, and the median income for a family was $76,441. Males had a median income of $55,023 versus $34,774 for females. The per capita income for the village was $30,247. About 1.2% of families and 2.6% of the population were below the poverty line, including 1.7% of those under age 18 and 5.2% of those age 65 or over.
The Roman Catholic Archdiocese of Chicago operates Catholic schools. St. Louise de Marillac School is in LaGrange Park. The student population from circa 2019 to 2020 declined by 28. The archdiocese asked if there were interested benefactors, but the archdiocese was unsuccessful. Therefore the archdiocese decided it will close after spring 2020.
