Mille Lacs County GIS Maps
Mille Lacs County, Minnesota, has 26,459 residents across 20,086 parcels and covers 572.4 square miles. The population grew 1.4% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Mille Lacs County is 27095.
Princeton is the county's largest population center. Mille Lacs County also includes 7 zip codes, 5 public school districts and 47 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show parcel data, population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers, Parcels and sample data. Paid packages add full layers, analytics and database files.
Mille Lacs County Trends
- Population
- 26,459▴
- Median Home Value
- $237,500▴
- K-12 Enrollment
- 6,352▴
County analytics dashboards with historical trends & projections included in package downloads.
Free starter access previews county maps, lightweight GIS, and sample data. Paid packages unlock full GIS layers, analytics, and database files.
Mille Lacs County Maps
The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.
County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.
Mille Lacs County Parcels
Mille Lacs County has 20,086 mapped parcels covering 371,224 acres. The median lot size is 2.00 acres. 6,332 parcels are 10 acres or larger. The records carry 409 distinct owner names. Lot sizes are on nearly every parcel. Site addresses reach 65.6%. Browse the interactive Mille Lacs County Parcel viewer here.
Mille Lacs County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 20,084 | 100% |
| Owner name | 550 | 2.7% |
| Owner mailing address | 529 | 2.6% |
| Site address | 13,184 | 65.6% |
| Land use code | 20,039 | 99.8% |
| Land use description | 0 | 0% |
| Assessed value | 0 | 0% |
| Land value | 0 | 0% |
| Improvement value | 0 | 0% |
| Acreage | 20,084 | 100% |
| Parcel boundary | 20,084 | 100% |
| Download all Mille Lacs County parcels. | ||
Field coverage measured across all Mille Lacs County parcel records.
Mille Lacs County Population
Mille Lacs County had 26,459 residents in 2020. That was 1.4% higher than in 2010. Mille Lacs County added 4,129 people between 2000 and 2020, which points to steady long-term growth. Princeton is the largest city in the county, but it accounts for only about 18% of the total population. The county is fairly spread out, with about 46 people per square mile. Some of the county's most populated postal areas include Princeton, Milaca and Onamia.
Population Trend in Mille Lacs County MN
Mille Lacs County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Mille Lacs County Zip Codes
Mille Lacs County has 7 zip codes. Some of the county's most populated zip codes include Princeton (55371), Milaca (56353) and Onamia (56359). Princeton is the largest zip by population, with about 17,132 residents or 65% of the county total. Together, the three largest zips account for about 114% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Mille Lacs County MN
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 55371 | Princeton | 17,132 | ▴ 4.2% |
| 56353 | Milaca | 9,314 | ▴ 3.5% |
| 56359 | Onamia | 3,585 | ▾ -7.6% |
| 56330 | Foreston | 1,763 | ▴ 4.3% |
| 56386 | Wahkon | 654 | ▴ 0.3% |
| Download all zip code data | |||
Mille Lacs County Zip Code populations and trends per most recent census data.
Mille Lacs County Demographics
Mille Lacs County has a median age of 41.2, which makes the county a little older than Minnesota overall. About 23.4% of residents are under 18, while 18.4% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 29.8% of the population, which points to a solid working-age base. About 17.6% of adults have a bachelor's degree or higher, above the statewide figure of 38.8%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Mille Lacs County MN
Median Age
41.2
Under 18
23.4%
Age 65+
18.4%
Bachelor's+
17.6%
Mille Lacs County School Districts
Mille Lacs County is served by 5 public school districts with 6,352 students enrolled in 2024. The largest districts on the county map are Princeton Public, Milaca Public and Onamia Public. Those three districts account for about 86% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, but it is slightly lower than it was in 2017.
Largest School Districts by Enrollment in Mille Lacs County MN
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Princeton Public School District | 3,291 | 51.8% | ▴ 2.3% |
| Milaca Public School District | 1,639 | 25.8% | ▴ 0.7% |
| Onamia Public School District | 556 | 8.8% | ▾ -5% |
| Ogilvie Public School District | 472 | 7.4% | ▾ -2.1% |
| Isle Public School District | 394 | 6.2% | ▾ -6.9% |
| Download all school district data | |||
Mille Lacs County school district enrollment and trends per most recent NCES reporting data.
Mille Lacs County Housing & Real Estate
Mille Lacs County has a median home value of $237,500 and a median gross rent of $909. About 78% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Minnesota median, while rents come in below the state average. In March 2026, the median listing price was $353,675 and homes spent about 63 days on the market.
Mille Lacs County Housing Mix
Mille Lacs County housing mix: owner, renter and vacant units.
Mille Lacs County Housing Trends
Mille Lacs County median home value and rent trend (last 5 years).
Businesses in Mille Lacs County, MN
Mille Lacs County has 1,259 business listings across 368 categories. The largest categories in Mille Lacs County business listings are Churches & Religious Organizations (40, 3.2%), Farm (22, 1.7%), and Lake (21, 1.7%). The full Mille Lacs County business listings dataset includes names, categories, addresses and contact details where available. Mille Lacs County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Mille Lacs County, MN
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 40 | 3.2% |
| Farm | 22 | 1.7% |
| Lake | 21 | 1.7% |
| Gas Stations | 20 | 1.6% |
| Bars & Nightlife | 20 | 1.6% |
| Auto Repair | 19 | 1.5% |
| Real Estate Agents | 18 | 1.4% |
| Contractors | 18 | 1.4% |
| Parks & Recreation | 18 | 1.4% |
| Bar And Grill Restaurant | 14 | 1.1% |
Mille Lacs County Business Listings
| Business | Category | City |
|---|---|---|
| Freedom Center | Abuse And Addiction Treatment | Princeton |
| Onamia Town Square | Accommodation | Onamia |
| Knapp's Tax & Accounting | Accountant | Princeton |
| Fat Jack's Cabaret | Adult Entertainment | Bock |
| Rum River Promotions | Advertising Agency | Princeton |
| Central Feed Service Inc | Agricultural Service | Princeton |
| Allis-Chalberg Basset Hounds and Farm | Agriculture | Milaca |
| Princeton Municipal Airport | Airport | Princeton |
| Transformation House | Alcohol And Drug Treatment Centers | Princeton |
| North Memorial Health Ambulance | Ambulance And Ems Services | Princeton |
| Download Mille Lacs County business listings | ||
Mille Lacs County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Mille Lacs County Basemaps
Mille Lacs County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.
Get the Full Mille Lacs County Data Package
This page shows a preview of what's included in the Mille Lacs County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.
- 20+ GIS layers for parcels, zip codes, school districts, roads, water, boundaries and more
- Historical county demographics, housing, income and trend data
- ZIP code population files and school district enrollment history
- Database files, markdowns, AI-ready prompts and documentation
- Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
- Offline-ready data explorer, map and analytics tools
Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.
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Nearby Counties
Browse county data pages for the counties that border Mille Lacs County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.