ZIP CodesZIP codes in Morrow County, Oregon
Morrow County, Oregon has 5 ZIP codes in this list, from 97818 to 97844. They cover 5 places, among them Boardman, Heppner, Lexington and Ione.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 97818 | Boardman | 213 | 45.827, -119.721 |
| 97836 | Heppner | 945 | 45.349, -119.537 |
| 97839 | Lexington | 175 | 45.426, -119.746 |
| 97843 | Ione | 372 | 45.540, -119.769 |
| 97844 | Irrigon | 33.0 | 45.888, -119.507 |
The ZIP code areas of Morrow County add up to about 1,739 square miles of land (4,504 sq km) as the Census Bureau draws them. The largest is 97836 (Heppner), with 945 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Boardman, OR 97818.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.