| Official Zip Code Name | Oak Brook |
| Zip Code State | Illinois |
| Primary County: | Dupage |
| Area Code | 630/708/331/847/224/773 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 6 |
| Elevation Range | 676 ft. |
| Area | 8.954 Sqm. |
| Coordinates(Y,X) | 41.836421, -87.952011 |