Explore St. Marys, Ontario, Canada, with this interactive street and satellite map. Use the Map and Satellite buttons above the map to switch views. You can “grab” the map and drag it to re-centre it, or use the + and − buttons to zoom in or out to street-level detail. You will find live weather, local and world news below.
Imagery © Google · for orientation only, not for navigation
This interactive map shows the street layout and satellite imagery for St. Marys, Ontario. Use the Map and Satellite buttons above to switch between street map and aerial imagery views. Use the + and − buttons to zoom in or out, or scroll your mouse wheel while holding the Control key to zoom. On a touchscreen, use a two-finger pinch gesture to zoom in and out.
Click ⛶ Fullscreen to expand the map to fill your screen for a larger view. To return to the normal page view, press the Escape key on your keyboard, click the ✕ Exit Fullscreen button that appears above the map, or on a mobile device tap the back button (Android) or the close icon (iOS).
Drag the map to pan to any area of Ontario or beyond. Switch to Satellite view to see high-resolution aerial photography of St. Marys and surrounding areas, including streets, buildings, parks and waterways.
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| Place | St. Marys |
| Type | Separated Town |
| Province / Territory | Ontario (ON) |
| Location | Perth |
| Country | Canada |
| Latitude | 43.259445 |
| Longitude | -81.133056 |
| Population | 7,386 |
| Postal Code (FSA) | N4X |
| Area Code | 226, 249, 289, 343, 365, 382, 416, 437, 519, 548, 613, 647, 705, 742, 807, 905 |
| Importance | Town |
| CGN ID | FEBWI |
St. Marys is a separated town in Perth, Ontario, Canada. It is classified as a town. St. Marys is located at 43.2594°N, 81.1331°W.
St. Marys settles firmly into the land where the North Thames River carves a deliberate path through the rolling terrain near the Cobble Hills. It lies 17.9 km south-west of Stratford, ON (from Stratford, ON: bearing 225°T), and is situated 14.3 km east-north-east of Granton. The water pulls at the limestone banks with a steady, low-frequency hum, catching the late afternoon light that turns the surface into a sheet of hammered silver. Beyond the immediate reach of the streets, the horizon softens into the rise of the Cobble Hills, an elevation that gives the sky a wide, expansive authority. The air here holds a crisp, earthen clarity, especially when the wind shifts to carry the damp, cool breath from Wildwood Lake or the quiet stillness of the nearby Wildwood Conservation Area. The limestone that defines the riverbanks also provided the foundation for the local economy, as St. Marys grew around the strength of its quarries and the industry they supported. St. Marys maintains a distinct character held together by heritage architecture, where the heavy, pale stone of historic facades anchors the streetscapes against the passage of decades. This is a place where the daily movement of people follows the long-standing habits of a regional hub, balancing the quietude of agricultural life with the deliberate pace of small-scale manufacturing. Residents often look toward the North Thames River as the primary marker of their geography, a constant, winding presence that dictates the flow of the valley and links the life of the inhabitants to the geology beneath their feet.
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Explore St. Marys, Ontario, Canada, with an embedded street and satellite map — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 43.259445, -81.133056. Live weather conditions and 7-day forecasts — including hourly outlooks — are provided through Open-Meteo, while real-time local and world news feeds help keep the page current. Editorial summaries provide additional local information and context.
Detailed location data for St. Marys includes the postal code (N4X), telephone area code (226, 249, 289, 343, 365, 382, 416, 437, 519, 548, 613, 647, 705, 742, 807, 905). These are among the most commonly searched location details for any Canadian city or town.
Location data for St. Marys is sourced from the Canadian Geographical Names Database (CGN), Natural Resources Canada, and verified by coordinates rather than name matching alone. GPS coordinates, province, administrative location and place type are shown in the information panel above.
| Page generated | August 2026 |
| Location data | Canadian Geographical Names Database (CGN), Natural Resources Canada |