Gratiot County GIS Maps
Gratiot County, Michigan, has 41,761 residents and covers 568.4 square miles. The population declined 1.7% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Gratiot County is 26057.
Alma is the county's largest population center. Gratiot County also includes 14 zip codes, 11 public school districts and 37 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.
Gratiot County Trends
- Population
- 41,761▾
- Median Home Value
- $136,800▴
- K-12 Enrollment
- 11,660▾
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.
Gratiot 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.
Gratiot County Population
Gratiot County had 41,761 residents in 2020. That was 1.7% lower than in 2010. Gratiot County had 524 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 73 people per square mile. Some of the county's most populated postal areas include Alma, Saint Louis and Ithaca.
Population Trend in Gratiot County MI
Gratiot County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Gratiot County Zip Codes
Gratiot County has 14 zip codes. Some of the county's most populated zip codes include Alma (48801), Saint Louis (48880) and Ithaca (48847). Alma is the largest zip by population, with about 13,006 residents or 31% of the county total. Together, the three largest zips account for about 70% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Gratiot County MI
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 48801 | Alma | 13,006 | ▴ 0.6% |
| 48880 | Saint Louis | 10,495 | ▾ -1.6% |
| 48847 | Ithaca | 5,886 | ▾ -2.6% |
| 48615 | Breckenridge | 2,917 | ▾ -4.6% |
| 48877 | Riverdale | 2,300 | ▾ -3.8% |
| Download all zip code data | |||
Gratiot County Zip Code populations and trends per most recent census data.
Gratiot County Demographics
Gratiot County has a median age of 39.7, which makes the county a little younger than Michigan overall. About 19.5% of residents are under 18, while 17.5% 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 32% of the population, which points to a solid working-age base. About 19% 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 Gratiot County MI
Median Age
39.7
Under 18
19.5%
Age 65+
17.5%
Bachelor's+
19%
Gratiot County School Districts
Gratiot County is served by 11 public school districts with 11,660 students enrolled in 2024. The largest districts on the county map are St. Johns Public Schools, Alma Public Schools and Shepherd Public. Those three districts account for about 52% 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 Gratiot County MI
| District | Enrollment | Share | Trend |
|---|---|---|---|
| St. Johns Public Schools | 2,458 | 21.1% | ▾ -4.5% |
| Alma Public Schools | 1,815 | 15.6% | ▾ -1.6% |
| Shepherd Public School District | 1,746 | 15% | ▾ -1.2% |
| Ovid-Elsie Area Schools | 1,275 | 10.9% | ▾ -3.3% |
| Ithaca Public Schools | 971 | 8.3% | ▾ -2.2% |
| Download all school district data | |||
Gratiot County school district enrollment and trends per most recent NCES reporting data.
Gratiot County Housing & Real Estate
Gratiot County has a median home value of $136,800 and a median gross rent of $808. About 79% 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 $171,248 and homes spent about 67 days on the market.
Gratiot County Housing Mix
Gratiot County housing mix: owner, renter and vacant units.
Gratiot County Housing Trends
Gratiot County median home value and rent trend (last 5 years).
Businesses in Gratiot County, MI
Gratiot County has 1,616 business listings across 430 categories. The largest categories in Gratiot County business listings are Churches & Religious Organizations (75, 4.6%), Gas Stations (30, 1.9%), and Auto Repair (29, 1.8%). The full Gratiot County business listings dataset includes names, categories, addresses and contact details where available. Gratiot County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Gratiot County, MI
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 75 | 4.6% |
| Gas Stations | 30 | 1.9% |
| Auto Repair | 29 | 1.8% |
| Farm | 23 | 1.4% |
| Parks & Recreation | 22 | 1.4% |
| Community & Nonprofits | 22 | 1.4% |
| Post Offices | 20 | 1.2% |
| Public And Government Association | 20 | 1.2% |
| Elementary School | 19 | 1.2% |
| Insurance Agencies | 18 | 1.1% |
Gratiot County Business Listings
| Business | Category | City |
|---|---|---|
| Alma College Hospitality and Conference Services | Accommodation | Alma |
| Yeo & Yeo CPAs & Advisors | Accountant | Alma |
| Trevor Walton Performance Horses | Active Life | Riverdale |
| Live Well Natural Health | Acupuncture | Pine River Twp |
| Janson Equipment | Agricultural Service | Breckenridge |
| Michigan Livestock Exchange | Agriculture | St Louis |
| Gratiot Community Airport | Airport | Arcada Twp |
| Gratiot County Substance & Suicide Prevention Program | Alcohol And Drug Treatment Centers | Alma |
| Perrinton Fire/Rescue GESA Station 2 | Ambulance And Ems Services | Perrinton |
| J J Rubys | American Restaurants | Ithaca |
| Download Gratiot County business listings | ||
Gratiot County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Gratiot County Basemaps
Gratiot 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 Gratiot County Data Package
This page shows a preview of what's included in the Gratiot 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.
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Nearby Counties
Browse county data pages for the counties that border Gratiot County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.