Third River is a township in Itasca County, Minnesota, home to about 48 people across 35 square miles. It has no ZIP code of its own: it’s part of 56630 and 56681.
Homes sold for a median of $110 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
Mostly Blackduck; part is in Third River
Mostly Bowstring Lake UT; part is in Third River
Each card is that ZIP code’s whole market, including any part outside Third River. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Third River’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)198 miles away |
|---|---|
| Closer regional airport | Range Regional Airport (HIB)67 miles away |
| Nearest city of 250,000+ | Minneapolis, MN192 miles away |
| Nearest city of 1 million+ | Chicago, IL514 miles away |
Straight-line distances from the center of Third River; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Third River had 50 residents in the 2020 census, down 23% since 2000.
It’s the 2586th largest of 2,727 towns in Minnesota by population.
Itasca County grew from 4,573 residents in 1900 to 45,014 in 2020.
Itasca County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 77°F in summer, and winter lows average -5°F. About 26.8 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Northome 3s, MN weather station (12 miles away).
13,380 jobs at 1,175 businesses in Itasca County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
11 doctors and other health care providers list an office in Third River’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Dentists | 2 |
| Nurse practitioners and physician assistants | 3 |
| Physical and occupational therapists | 3 |
| Chiropractors | 2 |
| Pharmacies | 4 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Public schools here are run by Blackduck Public School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Blackduck ElementaryBlackduck | Pre-K–6 | 412 | Public | 15.7 mi |
| Blackduck SecondaryBlackduck | 7–12 | 284 | Public | 15.7 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Blackduck, Bowstring Lake UT, Lower Red Lake UT, Hornet, Summit Township (Beltrami County), Langor, Moose Park, Squaw Lake, Max, Moose Lake Township (Beltrami County), Hines, Quiring, Cormant, Birch, Good Hope Township (Itasca County), Funkley, Nore, O'Brien, Kinghurst and Alvwood.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.