O'Brien Township is a township in Beltrami County, Minnesota, United States. The population was 47 as of the 2020 census. O'Brien Township was named for William O'Brien, a lumberman.

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Living in O'Brien

Health in O'Brien

Compared with Minnesota

1better than MN·13worse

of 32 measures CDC estimates. The other 18 are too close to call.

Conditions 8▼ 4 close Habits 2▼ 2 close Care 1▲ 1▼ 5 close Mind 2▼ 3 close Everyday needs all close

BetterToo close to callWorse

What stands out

79.3%More adults treating high blood pressureMN 76.1% · better 13.2%More older adults who have lost all their teethMN 8.9% · worse

Care nearby

Sanford Bemidji Medical CenterBemidji · 20.1 mi · ER

Scenic Rivers Health ServicesNorthome · 23.7 mi · sliding-scale fees

Primary careShortage · O'Brien

DentalShortage · county-wide

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · ZIP codes 56630, 56683 · CMS · HRSAHealth in O'Brien →

Natural hazards in O'Brien

Very low

Expected storm and flood damage is higher than in 19% of U.S. communities.

🌊 Inland flooding🥶 Cold waves

0Does O'Brien flood?no paid flood claims on record 2Disasters that paid out herefederal disasters sent FEMA money to O'Brien MapO'Brien vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in O'Brien →

Climate in O'Brien

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O'Brien has cold winters and pleasant summers. A typical July afternoon reaches 78°, a January night drops to -3°.

21° / 1°Winter

51° / 28°Spring

76° / 54°Summer

52° / 33°Fall

When is the first frost?Around Oct 4, with the last in spring around May 12.Frost dates →Is it warmer than it used to be?+1.7° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in O'Brien →

Libraries near O'Brien

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Nearest: Blackduck Public LibraryBlackduck · 10.9 miles · 20 hrs a week

Famous people from O'BrienWriters, athletes, leaders and more who were born in O'Brien.Meet them →

Where O'Brien is

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Imported town boundary

Minnesota · MN · Beltrami CountyTown boundary on OpenStreetMap →

Around town

Bordering towns

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O'Brien Nebish Quiring Langor Hagali

SWNebish NQuiring ELangor SHagali

Compare side by side:O'Brien vs Nebish O'Brien vs Quiring O'Brien vs Langor O'Brien vs Hagali

How things work in O'Brien

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O'Brien

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The O'Brien album

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