O'Brien is a township in Beltrami County, Minnesota, home to about 43 people across 36 square miles. It has no ZIP code of its own: it’s part of 56630 and 56683.
Homes sold for a median of $144 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Population431 per sq mi
Median home value$227,800Census, as estimated by owners
Price per sq ft$144Sold homes, 3 months to August 2026
Each card is that ZIP code’s whole market, including any part outside O'Brien. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
The O'Brien guide is on the way
We’re writing up O'Brien’s story and what everyday life there is like, for people thinking about moving in.
History
What it’s like to live there
Getting around
Things to do
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Around O'Brien
Distances
Nearest major airport
Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)205 miles away
Closer regional airport
Thief River Falls Regional Airport (TVF)79 miles away
Nearest city of 250,000+
Minneapolis, MN199 miles away
Nearest city of 1 million+
Chicago, IL527 miles away
Straight-line distances from the center of O'Brien; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Who represents O'Brien
U.S. Representative · Minnesota’s 8th DistrictPete Stauber (R)
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Population over time
O'Brien had 47 residents in the 2020 census, down 16% since 2000.
It’s the 2608th largest of 2,727 towns in Minnesota by population.
Beltrami County grew from 11,030 residents in 1900 to 46,228 in 2020.
Beltrami County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Weather by month
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 (17 miles away).
Jobs in Beltrami County
16,073 jobs at 1,250 businesses in Beltrami County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Health care
11 doctors and other health care providers list an office in O'Brien’s ZIP codes.
Nearest hospitals
Sanford Bemidji Medical CenterGeneral hospital · emergency room · CMS rating 4 of 5 · Bemidji20.8 miles
Cass Lake Indian Health Services HospitalCritical access hospital · emergency room · Cass Lake22.3 miles
Red Lake HospitalGeneral hospital · no emergency room · Redlake25.6 miles
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.
Places in and around O'Brien
Parks (1 nearby)
Blackduck Wayside Rest Park · 5 acres1.8 mi
Museums (1 nearby)
Blackduck Area History & Art2.0 mi
Counts are within about 4 miles of the center of town.
Public schools here are run by Blackduck Public School District. Check each district’s attendance zones for a specific address.
Public schools(2)
School
Grades
Students
Type
Distance
Blackduck ElementaryBlackduck
Pre-K–6
412
Public
2.0 mi
Blackduck SecondaryBlackduck
7–12
284
Public
2.0 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, Hagali, Lower Red Lake UT, Hornet, Summit Township (Beltrami County), Port Hope, Langor, Moose Park, Moose Lake Township (Beltrami County), Hines, Tenstrike, Quiring, Cormant, Birch, Good Hope Township (Itasca County), Funkley, Nore, Nebish, Third River 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.