Explore Portsmouth, 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 Portsmouth, 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 Portsmouth and surrounding areas, including streets, buildings, parks and waterways.
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| Place | Portsmouth |
| Type | Urban Community |
| Province / Territory | Ontario (ON) |
| Location | Frontenac |
| Country | Canada |
| Latitude | 44.2221 |
| Longitude | -76.52294 |
| Postal Code (FSA) | K7M |
| Area Code | 226, 249, 289, 343, 365, 382, 416, 437, 519, 548, 613, 647, 705, 742, 807, 905 |
| Importance | Small locality |
| CGN ID | FCIBA |
Portsmouth is a urban community in Frontenac, Ontario, Canada. It is classified as a small locality. Portsmouth is located at 44.2221°N, 76.5229°W.
Portsmouth rests quietly upon the limestone edges of Lake Ontario, where the horizon dissolves into a vast, slate-colored expanse. It lies 1.7 km south-west of Kingston, ON (from Kingston, ON: bearing 215°T), and is situated 7.5 km west-north-west of Marysville. The terrain rises toward Lamberts Hill, a modest elevation that catches the late afternoon light, turning the stone buildings and narrow streets into silhouettes against the cooling sky. Air here carries a sharp, damp salinity, a constant reminder of the deep water that shapes the local climate and defines the boundary between land and lake. Beneath the surface of the quiet streets, the weight of the water exerts a subtle pull, drawing the gaze constantly toward the southern shore. The history of Portsmouth holds the echoes of stone-cutting and maritime industry, trades that once defined the daily labor of its inhabitants. While the Cataraqui River (Rideau Canal) flows some distance away, the influence of water-borne commerce remains a ghost in the architecture of the older docks and warehouses. Today, Portsmouth balances the remnants of its industrial past with a more measured pace, where the rhythm of the day aligns with the shifting winds off the lake. Residents move through the neighborhood with a familiarity born of long winters, finding warmth in the enduring limestone structures that have weathered the seasons for generations.
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Explore Portsmouth, 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: 44.2221, -76.52294. 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 Portsmouth includes the postal code (K7M), 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 Portsmouth 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 |