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Zip Code 56701 — Thief River Falls, MN

ZIP Code 56701 is associated with Thief River Falls, MN, in Pennington County. The listed population estimate is 12,705; estimated density is 12.8 people per square mile. Among records with population estimates, it ranks #1 of 3 in Pennington County and #150 of 877 in MN.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (48.120210, -96.199400)

Data MetricLocal Statistic
Postal / Zip Code56701
Primary CityThief River Falls
State / ProvinceMN
CountyPennington
Total Population12,705
Population Density12.8 people/sq mi
TimezoneAmerica/Chicago

How 56701 Compares

MetricZIP 56701Pennington County recordsMN records
Population estimate12,70514,137 (sum)5,739,754 (sum)
Population Density12.8 /sq mi----
County population rank#1 of 3----
State population rank#150 of 877----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in MN

ZIP CodeCityDistancePopulation estimate
ZIP 56754Saint Hilaire9.0 mi491
ZIP 56760Viking14.1 mi496
ZIP 56748Plummer16.4 mi673
ZIP 56750Red Lake Falls16.6 mi2,324
ZIP 56738Newfolden16.7 mi1,228

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →