Fort Gratiot is a charter township in St. Clair County, Michigan, home to about 11,434 people across 16 square miles. Its ZIP code is 48059.
Homes sold for a median of $166 per square foot in the three months ending August 2026, a seller’s market.
Mostly Fort Gratiot; also Burtchville and Port Huron City
Each card is that ZIP code’s whole market, including any part outside Fort Gratiot. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Fort Gratiot’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Detroit Metropolitan Wayne County Airport (DTW)75 miles away |
|---|---|
| Closer regional airport | Bishop International Airport (FNT)64 miles away |
| Nearest city of 250,000+ | Detroit, MI58 miles away |
| Nearest city of 1 million+ | Chicago, IL278 miles away |
Straight-line distances from the center of Fort Gratiot; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Fort Gratiot had 11,242 residents in the 2020 census, up 5% since 2000.
It’s the 178th largest of 1,531 towns in Michigan by population.
St. Clair County grew from 55,228 residents in 1900 to 160,383 in 2020.
St. Clair County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 81°F in summer, and winter lows average 20°F. About 34.9 inches of rain and melted snow fall in a typical year, with about 36 inches of snow.
Source: NOAA 1991–2020 climate normals, Port Huron, MI weather station (9 miles away).
41,206 jobs at 3,080 businesses in St. Clair County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
157 doctors and other health care providers list an office in Fort Gratiot.
Nearest hospitals
Providers with an office here
| Primary care doctors | 11 |
|---|---|
| Specialist doctors | 19 |
| Dentists | 14 |
| Nurse practitioners and physician assistants | 24 |
| Mental health providers | 46 |
| Physical and occupational therapists | 26 |
| Optometrists | 12 |
| Chiropractors | 5 |
| Pharmacies | 4 |
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.
Parks (3 nearby)
Grocery stores
Pharmacies
Counts are within about 3 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Port Huron Area School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Edison Elementary SchoolFort Gratiot | Pre-K–5 | 404 | Public | 5.2 mi |
| Keewahdin Elementary SchoolFort Gratiot | Pre-K–5 | 510 | Public | 3.3 mi |
| Fort Gratiot Middle SchoolFort Gratiot | 6–8 | 533 | Public | 3.5 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Edward On-the-Lake Catholic SchoolLakeport | Pre-K–5 | 74 | Roman Catholic | 1.6 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Burtchville and Port Huron City.
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.