The city of Arlington Heights is assigned specific ZIP Code(s) by the United States Postal Service (USPS) to make mail delivery accurate and efficient. A ZIP Code in Arlington Heights helps identify the correct postal area, ensuring that letters, parcels, and packages reach the right neighborhood or post office without delay. For residents, businesses, and visitors, knowing the correct Arlington Heights ZIP Code is important not only for mailing purposes but also for location-based services, navigation, and demographic reference.
| Post Office | Arlington Heights |
| County | Cook |
| State | Illinois |
| ZIP Code | 60004 |
| Post Office | Arlington Heights |
| County | Cook |
| State | Illinois |
| ZIP Code | 60005 |
| Post Office | Arlington Heights |
| County | Cook |
| State | Illinois |
| ZIP Code | 60006 |