County ZIP codes · Oregon · FIPS 41069
Wheeler County, OR ZIP Codes
Wheeler County, Oregon has 4 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 3 of the residential ones lie mainly in Wheeler County and 1 mainly in a neighboring county; 2 cross the county line.
- ACS2020-24
- Census2020
Where are the ZIP codes of Wheeler County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All 4 residential ZIP codes in Wheeler County
3 ZIP codes lie mainly in Wheeler County; 1 more reaches into it from a neighboring county and follows the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 97830 | Fossil | 800 | 2 | $55k | $250k | 87% |
| 97750 | Mitchell | 416 | 1 | $55k | $377k | 100% |
| 97874 | Spray | 262 | 1 | $59k | $343k | 100% |
Partly in Wheeler County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 97823 | Condon | 1,014 | 1 | $58k | $151k | 2% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
2 ZIP codes of Wheeler County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Wheeler | Elsewhere |
|---|---|---|
| 97823 | 2% | Gilliam County98% |
| 97830 | 87% | Gilliam County13% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Wheeler County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Wheeler County's ZIP codes use 2 prefixes: 977 and 978.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.