Pennington County, Minnesota ZIP codes
3 ZIP codes are in Pennington County, plus 4 that cross in from neighboring counties.
- ZIP codes
- 3
- Population in these ZIPs
- 14,137
- Avg. median income
- $78,200population-weighted
- Cities & towns
- 3
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ZIP codes in Pennington County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 56701 | Thief River Falls | 12,705 | $78,599 | $188,900 |
| 56725 | Goodridge | 941 | $72,917 | $220,200 |
| 56754 | Saint Hilaire | 491 | $79,167 | $215,800 |
ZIP codes partly in Pennington County
These ZIP codes are mostly in a neighboring county but cover part of Pennington County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 56684 | Trail | Polk County | 280 | $73,750 | $280,200 |
| 56742 | Oklee | Red Lake County | 744 | $92,500 | $183,600 |
| 56748 | Plummer | Red Lake County | 673 | $87,500 | $232,600 |
| 56750 | Red Lake Falls | Red Lake County | 2,324 | $71,875 | $217,300 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Pennington County
Nearby counties
Frequently asked questions
How many ZIP codes are in Pennington County, Minnesota?
3 ZIP codes are mainly in Pennington County, and 4 more ZIP codes from neighboring areas reach partly into it.
What cities are in Pennington County?
ZIP codes in Pennington County use the city names Goodridge, Saint Hilaire and Thief River Falls.