Onamia ( oh-NAYM-ee-ə) is a city in Mille Lacs County, Minnesota, United States. The population was 784 as of the 2020 census, down from 878 in 2010. U.S. Highway 169 and Minnesota State Highway 27 are the main routes in the community.

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Town numbers

ZIP code56359

Area code320

Living in Onamia

Housing in Onamia

$227K Median sale price · Redfin, May 2026

The median sale price was $227,000 in May 2026.

Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in Onamia

—

Not graded

Onamia has fewer than 1,000 residents. At that size one or two incidents swing the numbers so much that a grade wouldn't be fair, so we show the counts instead.

Violent12

Property15

Reported in 202427

FBI crime data, 2024 · crimes reported to policeCrime & safety →

Work & commute in Onamia

Full picture →

Most working residents leave Onamia for work: only 12% work in town. The top destinations are Kathio (25%), Onamia (4%) and Brainerd (3%). Half commute less than 22 miles.

Kathio

25%

Onamia

Brainerd

Baxter

12%Work in townlive and work in Onamia 22 miWhere do people commute?the commute map 773Jobs based herea job hub

Census LEHD 2023 · ACSWork & commute in Onamia →

Health in Onamia

Compared with Minnesota

3better than MN·19worse

of 32 measures CDC estimates. The other 10 are too close to call.

Conditions 10▼ 2 close Habits 1▲ 2▼ 1 close Care 2▲ 1▼ 4 close Mind 2▼ 3 close Everyday needs 4▼ 0 close

BetterToo close to callWorse

What stands out

13%Fewer binge drinkersMN 17.8% · better 84.1%More adults treating high blood pressureMN 76.1% · better 19.3%More older adults who have lost all their teethMN 8.9% · worse

Care nearby

Mille Lacs Health SystemOnamia · 0.3 mi · ER · rural critical access

North Metro ClinicCoon Rapids · 66.2 mi · sliding-scale fees

Primary careNo shortage

DentalShortage · county-wide

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Onamia · CMS · HRSAHealth in Onamia →

Natural hazards in Onamia

Moderate

Expected storm and flood damage is higher than in 48% of U.S. communities.

🌊 Inland flooding🥶 Cold waves🌪️ Tornadoes

0Does Onamia flood?no paid flood claims on record NoneDisasters that paid out hereof 8 declared for Mille Lacs County MapOnamia vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Onamia →

Climate in Onamia

Full climate →

Onamia has cold, snowy winters and pleasant summers. A typical July afternoon reaches 80°, a January night drops to 2°, and about 32 inches of snow falls in a normal winter.

24° / 5°Winter

53° / 30°Spring

78° / 55°Summer

54° / 35°Fall

How much snow does Onamia get?About 32 inches a winter.Rain & snow →When is the first frost?Around Oct 1, with the last in spring around May 8.Frost dates →Is it warmer than it used to be?+1.9° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in Onamia →

Schools in Onamia

All Onamia schools →

C⁻

School Grade C-

The public schools Onamia’s kids attend, from kindergarten through graduation, trail 77% of Minnesota’s districts on state tests and graduation. Among towns with similar incomes, they rank near the bottom.

DistrictONAMIA PUBLIC SCHOOL DISTRICTSchools2

Kokesh Area Learning CenterHigh · Grades 9–12 · 28 students Onamia Academy DOther · Grades 4–12 · 36 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within MN. Ratings are from neighbors.