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Knife River, MN ZIP code

The ZIP code for Knife River, Minnesota is 55609. It is in Lake County.

Population in these ZIPs
131
Avg. median income
$78,200population-weighted
Typical home value
$422,800population-weighted
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ZIP codes within 10 miles

Knife River, MN ZIP code list

Knife River, MN ZIP codes
ZIP codePopulationMedian incomeTypical home value
55609131$78,208$422,800

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 near Knife River

Frequently asked questions

What is the ZIP code for Knife River, MN?

The ZIP code for Knife River, MN is 55609.

What county is Knife River, Minnesota in?

Knife River ZIP codes are in Lake County.