ZIP Code 60523
Oak Brook, Illinois · DuPage County
No26705
Zip60523
TypeSTANDARD
Decommissioned0
Primary CityOak Brook
Acceptable CitiesHinsdale
Unacceptable Cities—
StateIL
LstateIllinois
CountyDuPage County
TimezoneAmerica/Chicago
Area Codes331, 464, 630, 708
World RegionNA
CountryUS
Latitude41,83
Longitude-87,95