Glendale Heights is a village in DuPage County, Illinois, United States. Per the 2020 census, the population was 33,176. The village is almost entirely residential, and is a far west suburb of Chicago. History Glendale Heights was a small farming area served by the Glen Ellyn post office up until the 1950s, with a population of just 104 in 1959. Midland Enterprises ran by Charles and Harold Reskin started building houses in Glendale Heights in 1958. The Reskins bought two farms on Glen Ellyn Road north of North Avenue. Houses were first built on Glen Ellyn Road and Larry Lane near Fullerton Avenue. On June 16, 1959, a petition was filed and on July 13, the village became incorporated. The first election was held later on that summer on August 2. The town was originally named Glendale as it was between Glen Ellyn and Bloomingdale, but after a conflict arose with the small town of Glendale in Southern Illinois, the city decided in March 1960 to add the term Heights, in reference to its different topographies, a difference of about 100 feet because of its location straddling the Valparaiso Morraine, thus becoming Glendale Heights. Geography Glendale Heights is located at (41.920228, −88.078918). According to the 2021 census gazetteer files, Glendale Heights has a total area of , of which (or 97.45%) is land and (or 2.55%) is water. Demographics As of the 2020 census there were 33,176 people, 11,654 households, and 8,293 families residing in the village. The population density was . There were 11,874 housing units at an average density of . The racial makeup of the village was 36.61% White, 7.27% African American, 1.28% Native American, 25.25% Asian, 0.10% Pacific Islander, 16.87% from other races, and 12.63% from two or more races. Hispanic or Latino of any race were 32.82% of the population. There were 11,654 households, out of which 60.22% had children under the age of 18 living with them, 51.75% were married couples living together, 14.54% had a female householder with no husband present, and 28.84% were non-families. 21.49% of all households were made up of individuals, and 4.86% had someone living alone who was 65 years of age or older. The average household size was 3.44 and the average family size was 2.90. The village's age distribution consisted of 23.0% under the age of 18, 9.9% from 18 to 24, 32.3% from 25 to 44,