County · GEOID 41021
Gilliam County, OR ZIP codes
4 ZIP/ZCTAs intersecting this county.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Gilliam County (GEOID 41021). Methodology
Combined population of ZIP/ZCTAs intersecting this county: 3,326 (4 ZIPs).
Combined population of ZIP/ZCTAs intersecting this county. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census county ACS headline above. Methodology
ZIP/ZCTA overlap with Gilliam County
Population overlap
Share of each ZIP/ZCTA’s population located within Gilliam County, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Gilliam County
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 97812 | Arlington | Gilliam County | 996 | $76,087 |
| 97823 | Condon | Gilliam County | 984 | $55,125 |
| 97830 | Fossil | Wheeler County | 621 | $43,750 |
| 97843 | Ione | Morrow County | 725 | $93,393 |
USPS associates these ZIPs with Gilliam County
These codes list Gilliam County as a primary or acceptable city. They are not used for the ACS headline.
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 97861 | Mikkalo | Gilliam County | — | — |