ZIP codes in Coos County
11 ZIPs touch Coos County, Oregon. The blue dashed line is the county border; orange ZIPs reach into it.
11
ZIP codes
4
cross the county line
66,078
people in these ZIPs
36
counties in OR
Most people
Coos County ZIP list
More counties in Oregon
- Baker County13
- Benton County11
- Clackamas County38
- Clatsop County9
- Columbia County9
- Crook County7
- Curry County9
- Deschutes County11
- Douglas County30
- Gilliam County5
- Grant County12
Questions people actually ask
How many ZIP codes are in Coos County, Oregon?
11 ZIP codes reach into Coos County, including 1 PO Box or single-address ZIPs placed by the town they serve. 4 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Coos County has the most people?
97420 (Coos Bay) has about 27,621 residents, the most of any ZIP touching Coos County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Coos County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Coos County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from