Oakbrook Terrace is a city in DuPage County, Illinois, United States and is a suburb of Chicago. Per the 2020 census, the population was 2,751.

History

Oakbrook Terrace was originally named Utopia, a name suggested by a postmaster. The name Oakbrook Terrace was adopted in November 1959.

Geography

According to the 2021 census gazetteer files, Oakbrook Terrace has a total area of , of which (or 98.12%) is land and (or 1.88%) is water.