Isle Harbor is a township in Mille Lacs County, Minnesota, home to about 545 people across 27 square miles. It has no ZIP code of its own: it’s part of 56342 and 56386.
Homes sold for a median of $232 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Population54521 per sq mi
Median home value$263,100Census, as estimated by owners
Price per sq ft$232Sold homes, 3 months to August 2026
Each card is that ZIP code’s whole market, including any part outside Isle Harbor. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
The Isle Harbor guide is on the way
We’re writing up Isle Harbor’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 Isle Harbor
Distances
Nearest major airport
Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)88 miles away
Closer regional airport
Brainerd Lakes Regional Airport (BRD)36 miles away
Nearest city of 250,000+
Minneapolis, MN82 miles away
Nearest city of 1 million+
Chicago, IL414 miles away
Straight-line distances from the center of Isle Harbor; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Who represents Isle Harbor
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
Isle Harbor had 557 residents in the 2020 census, down 6% since 2000.
It’s the 986th largest of 2,727 towns in Minnesota by population.
Mille Lacs County grew from 8,066 residents in 1900 to 26,459 in 2020.
Mille Lacs 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 78°F in summer, and winter lows average 0°F. About 28.9 inches of rain and melted snow fall in a typical year, with about 43 inches of snow.
Source: NOAA 1991–2020 climate normals, Isle 12n, MN weather station (13 miles away).
Jobs in Mille Lacs County
8,011 jobs at 742 businesses in Mille Lacs County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Health care
3 doctors and other health care providers list an office in Isle Harbor’s ZIP codes.
Nearest hospitals
Mille Lacs Health SystemCritical access hospital · emergency room · Onamia9.4 miles
Welia HealthCritical access hospital · emergency room · CMS rating 3 of 5 · Mora20.5 miles
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 Isle Harbor
Parks (2 nearby)
Father Hennepin State Park · 325 acres0.6 mi
Isle Lake View Park · 1 acres0.7 mi
Grocery stores (2 nearby)
Supervalue0.8 mi
Morning Star Market2.0 mi
Libraries (1 nearby)
Isle-Mille Lacs Community Library0.9 mi
Counts are within about 3.5 miles of the center of town.
Public schools here are run by Isle Public School District. Check each district’s attendance zones for a specific address.
Public schools(3)
School
Grades
Students
Type
Distance
Isle ElementaryIsle
Pre-K–6
200
Public
0.7 mi
Isle Area Learning CenterIsle
7–12
6
Alternative Education
0.6 mi
Isle SecondaryIsle
7–12
188
Public
0.8 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 East Side, Isle, Lakeside Township (Aitkin County), Wahkon, Hay Brook, Hillman Township (Kanabec County), Idun, Ford, South Harbor and Seavey.
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.