Explore St. Clair, Michigan, with this interactive street and satellite map. You can “grab” the St. Clair, MI street map and move it around to re-centre it. You can change between standard map view and satellite map view by clicking the small square in the bottom left-hand corner of the map. You can use the zoom buttons on the lower right side of the map to zoom in or out to street-level detail. You will find live weather, local and world news below.
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| City | St. Clair |
| State | Michigan (MI) |
| County | St. Clair |
| Country | United States of America |
| Timezone | Eastern Time (America/Detroit) |
| Latitude | 42.820865 |
| Longitude | -82.486024 |
| Population | 5,585 |
| Density | 733.0 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 48079 |
| Area Code | 313 |
| County Seat | Port Huron |
| School District | East China School District |
St. Clair is a locality in St. Clair County, Michigan, United States. It has a population of approximately 5,585. The population density is 733.0 people per km². St. Clair is located at 42.8209°N, 82.4860°W. It observes the Eastern Time (America/Detroit) timezone. ZIP code: 48079.
St. Clair rests on the western bank of the St. Clair River, a wide, blue artery that separates Michigan from Ontario, Canada. It lies 10.8 miles south-south-west of Port Huron, MI (from Port Huron, MI: bearing 197°T), and is situated 9.6 miles south-south-east of Kimball. The land here is a gentle sweep of fertile soil, once marshy and wild, now a patchwork of fields and modest residential areas that slope towards the water. Ancient oaks and maples, their branches thick with the memory of countless seasons, stand sentinel along the riverfront, their leaves rustling with a sound like hushed secrets. In the soft light of late afternoon, the river itself seems to breathe, a slow, steady pulse reflecting the sky’s shifting moods, from a pale, washed-out blue to the deep, bruised purples of twilight. The history of St. Clair is inextricably linked to the river it calls home, a waterway that has been a highway for commerce and connection for centuries. Originally inhabited by Indigenous peoples, the area saw European settlement begin in the late 18th century, drawn by the promise of fertile land and the strategic importance of the river. For generations, St. Clair's economy was shaped by shipbuilding and lumber, industries that echoed with the clang of hammers and the scent of sawdust, leaving behind a legacy of sturdy craftsmanship. Today, while those industries have largely receded, the river remains central to St. Clair's identity, a source of recreation and a constant reminder of the town's enduring relationship with the water.
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This page provides an embedded street and satellite map of St. Clair, Michigan — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 42.820865, -82.486024. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on St. Clair and St. Clair County.
Detailed location data for St. Clair includes the ZIP code (48079), telephone area code (313), county seat of St. Clair County (Port Huron), and school district assignment (East China School District). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct St. Clair is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | July 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |