Map of St Lawrence County Map, New York

Written and Fact-checked by | Updated On: September 17, 2025, 14:10 ET

Map of St. Lawrence County - St. Lawrence County is a county located in the U.S. state of New York. St. Lawrence County Map showing cities, highways, important places and water bodies. Get Where is St. Lawrence County located in the map, major cities in St. Lawrence county, population, areas, and places of interest.

Map of St Lawrence County, New York

Map of St Lawrence County, New York

About St. Lawrence County Map, New York: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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About St Lawrence County, New York

St. Lawrence County is a county located in the U.S. state of New York. It's county seat is Canton. As per 2020 census, the population of St. Lawrence County is 108051 people and population density is 38.3 square miles. According to the United States Census Bureau, the county has a total area of 2,821 sq mi (7,306 km2). St. Lawrence County was established on 1802.

Facts about St. Lawrence County, New York

CountryUnited States
StateNew York
RegionNorth Country / Northern New York
County SeatCanton
Founded1802
Named ForSaint Lawrence River
Coordinates~44.47° N, 75.23° W
Total Area~2,821 sq mi
Land Area~2,680 sq mi
Water Area~141 sq mi
Water %~5.0%
Population (2020)~108,505
Estimated Population (2024)~106,198
Population Density~40/sq mi
Largest MunicipalityPotsdam (town/CDP)
Other Towns & CommunitiesOgdensburg, Massena, Gouverneur, Canton (village), Norwood, Edwards
Main IndustriesAgriculture, Manufacturing, Education, Tourism, Services
Major HighwaysU.S. 11, NY‑37, NY‑3, NY‑68
Time ZoneEastern Time (UTC−05:00)
Known ForSt. Lawrence River & Seaway, Adirondack Park, Clarkson University & SUNY Canton, rural landscapes
Websitehttps://www.stlawco.gov/

Top Attractions in St. Lawrence County, New York

  • St. Lawrence River – Boating and waterfront scenery.
  • Thousand Islands Region – Island views and boat tours.
  • Frederic Remington Art Museum – American Western art.
  • Upper Canada Village (nearby) – Living history village.
  • Robert Moses State Park – Riverfront park and trails.
  • Higley Flow State Park – Camping and paddling.
  • Massena International Kampground – Riverside camping.
  • Nicandri Nature Center – Environmental education and trails.
  • SUNY Potsdam Campus – Historic college grounds.
  • Clarkson University – Campus and science centers.
  • Remington Trail – Cultural and historic driving route.
  • Grasse River – Fishing and paddling river.

Cities & Towns in St. Lawrence County, New York

Canton, Potsdam, Ogdensburg, Massena, Gouverneur, Norwood, Madrid, Brasher Falls, Malone, Colton, Lisbon, Hermon, Hopkinton, Parishville, Star Lake, Waddington, Morristown, Winthrop, Richville, Edwards