Knife River ZIP code, Minnesota
The ZIP code for Knife River, MN is 55609, and its area code is 218.
- USPS city name
- 1 ZIP code
- Overlapping the city
- 1 more
- Population
- 131
- Area code
- 218
- County
- Lake County
- State
- Minnesota
NANPA lists no telephone rate centre for Knife River itself, so these are the area codes of the nearest one, Duluth (7.4 miles). A town on an area-code boundary can differ from its neighbour.
Mail addressed to Knife River uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.
ZIP codes addressed as Knife River
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
55609 | Knife River , MN | Standard | 131 | $78,208 | — |
Other ZIP codes overlapping Knife River
These ZIP codes cover part of Knife River but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
55616 | Two Harbors , MN | Standard | 7,250 | $76,127 | $259,200 |
Map of Knife River ZIP codes
The ZIP codes of Knife River, MN, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Knife River
The nearest larger towns are Two Harbors (3,567 people, 7.6 mi), Rice Lake (4,153 people, 17 mi) and Duluth (87,093 people, 20 mi).
| Town | Population | Distance |
|---|---|---|
| Two Harbors | 3,567 | 7.6 mi |
| Rice Lake | 4,153 | 16.7 mi |
| Duluth | 87,093 | 20.5 mi |
| Superior, WI | 26,677 | 22.6 mi |
| Hermantown | 10,218 | 23.8 mi |
| Proctor | 3,100 | 25.4 mi |
More nearby: every ZIP code in Lake County · Minnesota ZIP codes
Cite this page
zipcodes.pro. “Knife River, MN ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mn/knife-river
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