The city of Ellwood City is assigned specific ZIP Code(s) by the United States Postal Service (USPS) to make mail delivery accurate and efficient. A ZIP Code in Ellwood City 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 Ellwood City ZIP Code is important not only for mailing purposes but also for location-based services, navigation, and demographic reference.
| Post Office | Ellwood City |
| County | Lawrence |
| State | Pennsylvania |
| ZIP Code | 16117 |