High Quality Content by WIKIPEDIA articles! Woodridge is a suburb of Chicago, located primarily in DuPage County, Illinois with portions in Will County and Cook County. It uses the 630 and 331 area codes. The population was 30,934 at the 2000 census. As of the 2010 census, the population had grown to 32,971. Woodridge is the home of the Home Run Inn Pizza, a campus of Westwood College, and Pabst Brewing Company.