St. Lawrence County, New York

St. Lawrence County: county in New York, United States

About

St. Lawrence County is a county located in the U.S. state of New York. As of the 2010 census, the population was 111,944 and a population density of 15 people per km². After 5 years in 2015 county had an estimated population of 111,007 inhabitants. Its county seat is Canton. The county was created 224 years ago in 1802.

St. Lawrence County locator map
Location of St. Lawrence County on New York map.

County Snapshot

St. Lawrence County at a glance

St. Lawrence County currently has 33 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

33

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Quick Facts about St. Lawrence County

Population 111,007 (2015)
Country United States of America
State New York (United States)
Area 7308 km2
Water as percent of area 5%
Land as percent of area 95%
Latitude & Longitude 44.5006,-75.1163
Named for Saint Lawrence River
Altitude 620 feet / 189 meters
Capital Canton
Establishment March 03, 1802
Time Zone America/New_York
Local time 21:19:09 (15th April 2026)
Density 15 Pop. per km² as of 2015
Population growth -0.84% (2010-2015)
Weather 66℉ Showers And Thunderstorms Likely 7-days weather
Raquette '1' image
Raquette '1' image

Geography

St. Lawrence County is located at 44°30'2"N 75°6'59"W (44.5006200, -75.1163100). It has 5 neighbors: Hamilton County, Franklin County, Herkimer County, Jefferson County and Lewis County.

St. Lawrence County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of St. Lawrence County is Canton with a population of 11,024. Other cities include, Ogdensburg population 10,388, Massena population 10,122, Potsdam population 8,796 and Norfolk population 4,397. See all St. Lawrence County cities & populated places.

St. Lawrence County Populated Places (more)

Cities, towns, neighborhoods & other populated places in St. Lawrence County.

City Name Population Title
Canton 11,024 Village in St.
Ogdensburg 10,388 City in New York, USA
Massena 10,122 City in Cass County, Iowa, United States of America
Potsdam 8,796 Village in New York
Norfolk 4,397 Town in New York USA
Oswegatchie 4,250 Human settlement in St.
Lisbon 4,041 Town in New York, USA
Gouverneur 3,644 Town in New York, USA
Louisville 3,001 Human settlement in St.
Pierrepont 2,472 Human settlement in St.
De Kalb 2,309 Town in St.
Fowler 2,111 Town in New York, United States
Parishville 2,034 Human settlement in St.
Russell 1,767 Town in New York, USA
Madrid 1,633 City in New York, United States
Norwood 1,550 Village in St.

Weather

66°F
Showers And Thunderstorms Likely
7 mph SW Wednesday

A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 66. Southwest wind around 7 mph. Chance of...

7-Day Forecast

Official website of St. Lawrence County

Official Website

Demographics

According to census records, the population of St. Lawrence County decreased by 0.84% in 5 years.

Year Population % Change Method
2010 111,944 - census
2011 112,273 0.29% estimation process
2012 112,303 0.03% estimation process
2013 111,963 -0.3% estimation process
2015 111,007 -0.86% demographic balance
Comte de Saint Lawrence, Comte de St. Lawrence, Comté de Saint Lawrence, Comté de St. Lawrence, Condado de St. Lawrence, Condado han St. Lawrence, Contea di St. Lawrence, Hrabstwo St. Lawrence, Okrug Sent Lorens, Quan St. Lawrence, Quận St. Lawrence, Sejnt Loruns, Sent Lourens srjan, Sent-Lorens, Sent-Lourens, St, St. Lawrence, St. Lawrence Comitatus, mqatʿt sant lwrns, senta lararensa ka'unti, sentororensu jun, sheng luo lun si xian, shhrstan snt larns nywywrk, Округ Сент Лоренс, Сейнт Лорънс, Сент-Лоренс, Сент-Лоуренс, Սենտ Լոուրենս շրջան, سینٹ لارنس کاؤنٹی، نیویارک, شهرستان سنت لارنس، نیویورک, مقاطعة سانت لورنس, সেন্ট লৱরেন্স কাউন্টি, セントローレンス郡, 聖羅倫斯縣

People born in St. Lawrence County (8)

People born in St. Lawrence County, including United States Marine David O'Brien Martin, politician F. B. Willis, jurist William Henry Stilwell, .

More notable people

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