The city of Sergeant Bluff is assigned specific ZIP Code(s) by the United States Postal Service (USPS) to make mail delivery accurate and efficient. A ZIP Code in Sergeant Bluff 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 Sergeant Bluff ZIP Code is important not only for mailing purposes but also for location-based services, navigation, and demographic reference.
| Post Office | Sergeant Bluff |
| County | Woodbury |
| State | Iowa |
| ZIP Code | 51054 |