St. Louis County GIS Maps
St. Louis County, Minnesota, has 200,231 residents across 184,544 parcels and covers 6,247.8 square miles. The population grew 0% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for St. Louis County is 27137.
Duluth is the county's largest population center. St. Louis County also includes 42 zip codes, 13 public school districts and 136 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.
St. Louis County Trends
- Population
- 200,231▴
- Median Home Value
- $208,500▴
- K-12 Enrollment
- 25,773▾
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.
St. Louis 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.
St. Louis County Parcels
St. Louis County has 184,544 mapped parcels covering 4,087,288 acres. The median assessed value is $89,200. The median lot size is 1.13 acres. 59,456 parcels are 10 acres or larger. The records carry 90,514 distinct owner names. Owner names, assessed values and lot sizes are on nearly every parcel. Mailing addresses reach 75.0%. Site addresses reach 51.9%. Browse the interactive St. Louis County Parcel viewer here.
St. Louis County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 184,544 | 100% |
| Owner name | 184,482 | 99.9% |
| Owner mailing address | 138,487 | 75.0% |
| Site address | 95,764 | 51.9% |
| Land use code | 184,482 | 99.9% |
| Land use description | 0 | 0% |
| Assessed value | 184,544 | 100% |
| Land value | 184,544 | 100% |
| Improvement value | 184,544 | 100% |
| Acreage | 184,544 | 100% |
| Parcel boundary | 184,544 | 100% |
| Download all St. Louis County parcels. | ||
Field coverage measured across all St. Louis County parcel records.
St. Louis County Population
St. Louis County had 200,231 residents in 2020. That was 0% higher than in 2010. St. Louis County had 297 fewer people in 2020 than it did in 2000, which points to a long-term population decline. The county is fairly spread out, with about 32 people per square mile. Some of the county's most populated postal areas include Duluth, Duluth and 55746 - Hibbing 27137.
Population Trend in St. Louis County MN
St. Louis County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
St. Louis County Zip Codes
St. Louis County has 42 zip codes. Some of the county's most populated zip codes include Duluth (55811), Duluth (55803) and Hibbing (55746). Duluth is the largest zip by population, with about 27,761 residents or 14% of the county total. Together, the three largest zips account for about 31% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in St. Louis County MN
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 55811 | Duluth | 27,761 | ▴ 5.8% |
| 55803 | Duluth | 17,796 | ▴ 2.1% |
| 55746 | Hibbing | 17,071 | ▾ -0.9% |
| 55804 | Duluth | 15,471 | ▴ 6% |
| 55812 | Duluth | 10,571 | ▾ -3.2% |
| Download all zip code data | |||
St. Louis County Zip Code populations and trends per most recent census data.
St. Louis County Demographics
St. Louis County has a median age of 41.3, which makes the county a little older than Minnesota overall. About 18.8% of residents are under 18, while 20.8% 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 28.5% of the population, which points to a solid working-age base. About 32.5% 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 St. Louis County MN
Median Age
41.3
Under 18
18.8%
Age 65+
20.8%
Bachelor's+
32.5%
St. Louis County School Districts
St. Louis County is served by 13 public school districts with 25,773 students enrolled in 2024. The largest districts on the county map are Duluth Public, Cloquet Public and Rock Ridge Public Schools. Those three districts account for about 53% of public school enrollment in the map area. Total enrollment has grown modestly since 2017 across the districts shown on the county map.
Largest School Districts by Enrollment in St. Louis County MN
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Duluth Public School District | 8,723 | 33.8% | ▾ -0.4% |
| Cloquet Public School District | 2,529 | 9.8% | ▾ -2.7% |
| Rock Ridge Public Schools | 2,288 | 8.9% | ▾ -1.8% |
| Hibbing Public School District | 2,232 | 8.7% | ▴ 1.6% |
| Hermantown Public School District | 2,118 | 8.2% | ▴ 0.9% |
| Download all school district data | |||
St. Louis County school district enrollment and trends per most recent NCES reporting data.
St. Louis County Housing & Real Estate
St. Louis County has a median home value of $208,500 and a median gross rent of $970. About 72% 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 $322,000 and homes spent about 54 days on the market.
St. Louis County Housing Mix
St. Louis County housing mix: owner, renter and vacant units.
St. Louis County Housing Trends
St. Louis County median home value and rent trend (last 5 years).
Businesses in St. Louis County, MN
St. Louis County has 10,467 business listings across 877 categories. The largest categories in St. Louis County business listings are Lake (407, 3.9%), Churches & Religious Organizations (238, 2.3%), and Parks & Recreation (173, 1.7%). The full St. Louis County business listings dataset includes names, categories, addresses and contact details where available. St. Louis County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in St. Louis County, MN
| Category | Businesses | Share |
|---|---|---|
| Lake | 407 | 3.9% |
| Churches & Religious Organizations | 238 | 2.3% |
| Parks & Recreation | 173 | 1.7% |
| Medical Offices | 154 | 1.5% |
| Community & Nonprofits | 151 | 1.4% |
| Landmark And Historical Building | 149 | 1.4% |
| Auto Repair | 130 | 1.2% |
| Contractors | 128 | 1.2% |
| ATMs | 118 | 1.1% |
| Real Estate Agents | 116 | 1.1% |
St. Louis County Business Listings
| Business | Category | City |
|---|---|---|
| Duluth Bethel | Abuse And Addiction Treatment | Duluth |
| Jefferson Square Apartments | Accommodation | Duluth |
| DKK Accounting | Accountant | Duluth |
| T Craig Services | Active Life | Saginaw |
| Serenity Walker Campbell | Acupuncture | Duluth |
| Adam and Eve Stores | Adult Entertainment | Duluth |
| Jordan's Canoe Outfitters | Adventure Sports Center | Ely |
| Out There Advertising | Advertising Agency | Duluth |
| Lake Superior Helicopters | Aerial Tours | Duluth |
| Coon Aggregate Supply | Aggregate Supplier | Saginaw |
| Download St. Louis County business listings | ||
St. Louis County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Get the Full St. Louis County Data Package
This page shows a preview of what's included in the St. Louis 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 St. Louis County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.