Morrow County, Oregon ZIP codes
5 ZIP codes are in Morrow County, plus 2 that cross in from neighboring counties. It's part of the Hermiston-Pendleton, OR micro area.
- ZIP codes
- 5
- Population in these ZIPs
- 12,230
- Avg. median income
- $73,000population-weighted
- Cities & towns
- 5
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Morrow County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 97818 | Boardman | 5,610 | $61,523 | $331,500 |
| 97836 | Heppner | 1,998 | $88,591 | $249,200 |
| 97839 | Lexington | 116 | $40,568 | $211,400 |
| 97843 | Ione | 805 | $104,435 | $221,500 |
| 97844 | Irrigon | 3,701 | $76,090 | $305,400 |
ZIP codes partly in Morrow County
These ZIP codes are mostly in a neighboring county but cover part of Morrow County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 97826 | Echo | Umatilla County | 1,178 | $58,750 | $314,500 |
| 97838 | Hermiston | Umatilla County | 28,512 | $69,599 | $345,800 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Morrow County
Nearby counties
Frequently asked questions
How many ZIP codes are in Morrow County, Oregon?
5 ZIP codes are mainly in Morrow County, and 2 more ZIP codes from neighboring areas reach partly into it.
What cities are in Morrow County?
ZIP codes in Morrow County use the city names Boardman, Heppner, Ione, Irrigon and Lexington.
What metro area is Morrow County in?
Morrow County is part of the Hermiston-Pendleton, OR micropolitan statistical area.