ZIP codes in Pennington County
7 ZIPs touch Pennington County, Minnesota. The blue dashed line is the county border; orange ZIPs reach into it.
7
ZIP codes
7
cross the county line
18,158
people in these ZIPs
87
counties in MN
Most people
Pennington County ZIP list
More counties in Minnesota
- Murray County16
- Nicollet County10
- Nobles County17
- Norman County15
- Olmsted County21
- Otter Tail County35
- Pine County16
- Pipestone County8
- Polk County25
- Pope County13
- Ramsey County40
- Red Lake County9
Questions people actually ask
How many ZIP codes are in Pennington County, Minnesota?
7 ZIP codes reach into Pennington County. 7 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Pennington County has the most people?
56701 (Thief River Falls) has about 12,705 residents, the most of any ZIP touching Pennington County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Pennington 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 Pennington 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