Alger County GIS Maps
Alger County, Michigan, has 8,842 residents and covers 915 square miles. The population declined 7.9% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Alger County is 26003.
Chatham is the county's largest population center. Alger County also includes 9 zip codes, 3 public school districts and 20 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 population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers and sample data. Paid packages add full layers, analytics and database files.
Alger County Trends
- Population
- 8,842▾
- Median Home Value
- $165,700▴
- K-12 Enrollment
- 912▾
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.
Alger 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.
Alger County Population
Alger County had 8,842 residents in 2020. That was 7.9% lower than in 2010. Alger County had 1,020 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 10 people per square mile. Some of the county's most populated postal areas include Munising, Chatham and Shingleton.
Population Trend in Alger County MI
Alger County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Alger County Zip Codes
Alger County has 9 zip codes. Some of the county's most populated zip codes include Munising (49862), Chatham (49816) and Shingleton (49884). Munising is the largest zip by population, with about 4,602 residents or 52% of the county total. Together, the three largest zips account for about 67% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Alger County MI
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 49862 | Munising | 4,602 | ▾ -8.4% |
| 49816 | Chatham | 775 | ▴ 7% |
| 49884 | Shingleton | 515 | ▾ -6.7% |
| 49891 | Trenary | 515 | ▾ -36.9% |
| 49806 | Au Train | 480 | ▾ -23.4% |
| Download all zip code data | |||
Alger County Zip Code populations and trends per most recent census data.
Alger County Demographics
Alger County has a median age of 48.8, which makes the county a little older than Michigan overall. About 15% of residents are under 18, while 26.6% 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% of the population, which points to a solid working-age base. About 20.3% of adults have a bachelor's degree or higher, above the statewide figure of 31.8%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Alger County MI
Median Age
48.8
Under 18
15%
Age 65+
26.6%
Bachelor's+
20.3%
Alger County School Districts
Alger County is served by 3 public school districts with 912 students enrolled in 2024. The largest districts on the county map are Munising Public Schools, Superior Central Schools and Burt Township. Those three districts account for about 100% 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 Alger County MI
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Munising Public Schools | 549 | 60.2% | ▾ -0.9% |
| Superior Central Schools | 329 | 36.1% | ▴ 1.2% |
| Burt Township School District | 34 | 3.7% | ▾ -15% |
| Download all school district data | |||
Alger County school district enrollment and trends per most recent NCES reporting data.
Alger County Housing & Real Estate
Alger County has a median home value of $165,700 and a median gross rent of $712. About 84% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Michigan median, while rents come in below the state average. In March 2026, the median listing price was $369,225 and homes spent about 142 days on the market.
Alger County Housing Mix
Alger County housing mix: owner, renter and vacant units.
Alger County Housing Trends
Alger County median home value and rent trend (last 5 years).
Businesses in Alger County, MI
Alger County has 773 business listings across 222 categories. The largest categories in Alger County business listings are Lake (90, 11.6%), Campgrounds & RV Parks (39, 5.0%), and Lodge (20, 2.6%). The full Alger County business listings dataset includes names, categories, addresses and contact details where available. Alger County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Alger County, MI
| Category | Businesses | Share |
|---|---|---|
| Lake | 90 | 11.6% |
| Campgrounds & RV Parks | 39 | 5.0% |
| Lodge | 20 | 2.6% |
| Hotels | 20 | 2.6% |
| Cabin | 18 | 2.3% |
| Landmark And Historical Building | 18 | 2.3% |
| Motels | 18 | 2.3% |
| Parks & Recreation | 16 | 2.1% |
| Waterfall | 16 | 2.1% |
| Churches & Religious Organizations | 14 | 1.8% |
Alger County Business Listings
| Business | Category | City |
|---|---|---|
| Northpoint on Mirror Lake, Munising, MI | Accommodation | Munising |
| Michigan's Upper Peninsula | Active Life | Munising |
| Grand Marais Airport | Airport | Burt Township |
| The Duck Pond Eatery and Beer Garden | American Restaurants | Munising |
| Superior Playland | Amusement Park | Munising |
| Alger County Animal Shelter | Animal Shelters | Munising |
| Red Barn Rock | Antique Store | Au Train |
| Kolbus Sales & Service | Appliance Store | Munising |
| Market Place | Art Gallery | Grand Marais |
| Whispering Pines Quilt Shop | Arts And Crafts | Au Train |
| Download Alger County business listings | ||
Alger County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Alger County Basemaps
Alger 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 Alger County Data Package
This page shows a preview of what's included in the Alger 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 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.
One-time · instant download · 30-day refund guarantee · See full package details
Preview a Live Package Demo
See exactly what is included in a county data package. Inspect how files are organized, the interactive data explorer and how maps and analytics are laid out. The demo loads a real sample package from Michigan — explore the full structure before you buy.
No email or download required. Opens in a preview window on this page.
Nearby Counties
Browse county data pages for the counties that border Alger County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.