Morrow County, Oregon ZIP Codes
- ZIP records
5 - Cities represented
5 - Sum of listed ZIP population estimates
12,230
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 97818 | Boardman | 5,610 |
| 2 | 97844 | Irrigon | 3,701 |
| 3 | 97836 | Heppner | 1,998 |
| 4 | 97843 | Ione | 805 |
| 5 | 97839 | Lexington | 116 |
Cities in Morrow County
ZIP Directory
Browse all ZIP data for Oregon
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.