ZIP codes in Power County
4 ZIPs touch Power County, Idaho. The blue dashed line is the county border; orange ZIPs reach into it.
4
ZIP codes
3
cross the county line
26,126
people in these ZIPs
44
counties in ID
Most people
Power County ZIP list
More counties in Idaho
- Madison County9
- Minidoka County6
- Nez Perce County10
- Oneida County4
- Owyhee County10
- Payette County6
- Shoshone County15
- Teton County5
- Twin Falls County11
- Valley County7
- Washington County5
Questions people actually ask
How many ZIP codes are in Power County, Idaho?
4 ZIP codes reach into Power County. 3 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Power County has the most people?
83204 (Pocatello) has about 18,580 residents, the most of any ZIP touching Power County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Power 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 Power 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