County · New York
St. Lawrence County, New York
St. Lawrence County, New York. St. Lawrence County had 105,488 residents in 2025 by the Census Bureau's estimate, down 2.8% since 2020, a steeper fall than New York's (−1.0%). It holds 58 places (11 cities, villages and boroughs, 32 towns and townships and 15 census-designated) and 30 census tracts. GEOID 36089.
St. Lawrence County is the county of the Massena-Ogdensburg, NY micropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
105,488
Census Bureau estimate (no margin published)
2020 Census count: 108,505 · ACS 2020-2024: 107,226
Median household income
$62,850
±$2,870 (90% margin)
New York: $85,974
Median home value
$121,900
±$3,410 (90% margin)
New York: $423,800
Median gross rent
$818
±$34 (90% margin)
New York: $1,621
How many people live in St. Lawrence County, and is it growing?
The 2020 Census counted 108,505 residents in St. Lawrence County. The Census Bureau estimates 105,488 for July 1, 2025, down 2.8% since 2020, a steeper fall than New York's (−1.0%). The 2020-2024 American Community Survey puts the population at 107,226 over 2,680 square miles of land.
| Measure | St. Lawrence County | New York | Change since 2015-2019 |
|---|---|---|---|
| Total population | 107,226 | 19,852,366 | −1,687 |
| Households | 41,666±542 | 7,722,646 | no clear change |
| Average household size | 2.32±0.03 | 2.49 | no clear change |
| Housing units | 51,970±169 | 8,585,241 | −1,224 |
St. Lawrence County's population since 2000
From 111,931 in 2000 to 105,488 in 2025: down 5.8%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in St. Lawrence County?
St. Lawrence County holds 58 places: 11 cities, villages and boroughs (incorporated places), 32 towns and townships (county subdivisions with their own government) and 15 census-designated places. The largest is Town of Potsdam with 14,367 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Potsdam (town) | 14,901 | $53,302 |
|---|---|---|
| Massena (town) | 12,433 | $54,595 |
| Canton (town) | 11,638 | $70,401 |
| Massena | 10,151 | $51,458 |
| Ogdensburg | 10,064 | $61,824 |
| Potsdam | 8,312 | $34,546 |
| Canton | 7,155 | $62,054 |
| Gouverneur (town) | 6,551 | $44,411 |
| Norfolk (town) | 4,453 | $67,500 |
| Lisbon (town) | 4,221 | $73,963 |
| Oswegatchie (town) | 4,158 | $85,263 |
| Stockholm (town) | 3,816 | $77,097 |
| Gouverneur | 3,526 | $35,752 |
| Louisville (town) | 3,050 | $91,429 |
| Brasher (town) | 2,627 | $53,911 |
| Pierrepont (town) | 2,523 | $92,500 |
| De Kalb (town) | 2,375 | $57,467 |
| Waddington (town) | 2,235 | $79,688 |
| Fowler (town) | 2,142 | $49,875 |
| Morristown (town) | 2,082 | $66,250 |
| Parishville (town) | 2,038 | $77,095 |
| Russell (town) | 1,872 | $65,189 |
| Madrid (town) | 1,744 | $64,083 |
| Lawrence (town) | 1,715 | $64,318 |
| Norwood | 1,552 | $54,375 |
| Colton (town) | 1,530 | $69,156 |
| Fine (town) | 1,304 | $59,861 |
| Hammond (town) | 1,258 | $73,375 |
| Norfolk | 1,238 | $59,491 |
| Hopkinton (town) | 1,105 | $61,125 |
| Hermon (town) | 1,074 | $69,896 |
| De Peyster (town) | 1,023 | $67,000 |
| Edwards (town) | 1,015 | $72,300 |
| Hannawa Falls | 975 | $98,450 |
| Waddington | 937 | $73,750 |
| Macomb (town) | 912 | $70,417 |
| Rossie (town) | 799 | $72,578 |
| Pitcairn (town) | 790 | $56,389 |
| Madrid | 736 | $68,333 |
| Heuvelton | 722 | $63,542 |
| Clifton (town) | 675 | $47,228 |
| Brasher FallsGEOID 3607960 | 674 | $52,868 |
| ParishvilleGEOID 3656363 | 642 | $76,719 |
| Star Lake | 631 | $57,917 |
| HailesboroGEOID 3631346 | 544 | $64,375 |
| Akwesasne | 4,527 | $51,868 |
| WinthropGEOID 3682612 | 489 | $138,231 |
| DeKalb JunctionGEOID 3620049 | 485 | $56,406 |
| HermonGEOID 3634165 | 436 | $89,091 |
| MorristownGEOID 3648571 | 398 | $78,750 |
| Edwards | 361 | $61,786 |
| Rensselaer FallsGEOID 3661159 | 361 | $82,109 |
| ColtonGEOID 3617398 | 348 | $69,605 |
| Piercefield (town) | 282 | $89,191 |
| Hammond | 273 | $56,917 |
| Richville | 234 | $55,000 |
| Cranberry Lake | 174 | $89,063 |
| Clare (town)GEOID 3608915792 | 100 | not published |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in St. Lawrence County?
The median resident of St. Lawrence County is 39.3 years old; 19.9% are under 18 and 18.8% are 65 or older. The largest group is non-Hispanic white residents at 91.2%, then non-Hispanic residents of two or more races at 2.6%. 3.7% of residents were born outside the United States.
| Measure | St. Lawrence County | New York | Change since 2015-2019 |
|---|---|---|---|
| Median age | 39.3±0.3 | 39.8 | no clear change |
| Under 18 years | 19.9% | 20.5% | – |
| 65 years and over | 18.8%±0.1 pts | 17.9% | – |
| Hispanic or Latino (any race) | 2.5% | 19.8% | +0.1 pts |
| White alone, not Hispanic | 91.2%±0.2 pts | 52.8% | −0.8 pts |
| Black or African American alone, not Hispanic | 1.9%±0.1 pts | 13.4% | −0.3 pts |
| Asian alone, not Hispanic | 1.1%±0.1 pts | 9.0% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.4%±0.1 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.6%±0.3 pts | 3.8% | – |
| Some other race alone, not Hispanic | 0.2%±0.1 pts | 1.0% | – |
| Born outside the United States | 3.7%±0.4 pts | 22.8% | no clear change |
| Speak a language other than English at home (age 5+) | 6.3%±1.1 pts | 30.9% | – |
| Civilian veterans (age 18+) | 6.7%±0.5 pts | 3.7% | – |
| With a disability | 17.7%±0.8 pts | 12.6% | – |
| No health insurance coverage | 6.0%±1.2 pts | 5.1% | no clear change |
| High school graduate or higher (age 25+) | 89.9%±0.8 pts | 88.0% | – |
| Bachelor's degree or higher (age 25+) | 25.3%±1.2 pts | 40.2% | no clear change |
| Graduate or professional degree (age 25+) | 12.3%±0.8 pts | 17.9% | – |
| Moved from another state in the past year | 1.2%±0.2 pts | 1.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in St. Lawrence County earn?
Half of St. Lawrence County's 41,666 households earn less than $62,850 a year (±$2,870), against $85,974 in New York. In 2015-2019 it was $62,692 in 2024 dollars; the margins of error cannot tell the two periods apart. 16.9% of residents live below the poverty line.
| Measure | St. Lawrence County | New York | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $62,850±$2,870 | $85,974 | no clear change |
| Mean household income | $82,664±$3,231 | $128,247 | – |
| Per capita income | $33,177±$1,237 | $50,712 | +$1,944 |
| People below the poverty line | 16.9%±1.6 pts | 14.0% | no clear change |
| Children under 18 below the poverty line | 20.9%±3.4 pts | 18.3% | −5.5 pts |
| Households receiving SNAP | 15.5%±1.3 pts | 15.6% | – |
| Households with a broadband subscription | 86.8%±1.2 pts | 90.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in St. Lawrence County?
Owners occupy 71.9% of St. Lawrence County's occupied homes and renters 28.1%. The median owner-occupied home is valued at $121,900 by its owner (±$3,410). The median renter pays $818 a month including utilities, and 40.7% of renters pay 35% or more of their income on rent.
| Measure | St. Lawrence County | New York | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $121,900±$3,410 | $423,800 | +$6,707 |
| Median gross rent | $818±$34 | $1,621 | −$94 |
| Renters paying 35% or more of income on rent | 40.7%±3.9 pts | 43.1% | no clear change |
| Median monthly owner costs, with a mortgage | $1,330±$40 | $2,555 | – |
| Owner-occupied homes | 71.9%±1.9 pts | 54.3% | no clear change |
| Housing units | 51,970±169 | 8,585,241 | −1,224 |
| Homeowner vacancy rate | 1.3%±0.5 pts | 1.1% | – |
| Rental vacancy rate | 3.9%±1.7 pts | 3.8% | – |
| Single-family detached homes | 71.8%±1.5 pts | 41.2% | – |
| Mobile homes | 10.0%±0.9 pts | 2.1% | – |
| Built 2020 or later | 0.8%±0.3 pts | 0.8% | – |
| Built 1939 or earlier | 30.0%±1.3 pts | 30.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is St. Lawrence County building?
Builders took permits for 221 new housing units across St. Lawrence County in 2025 (213 single-family), 2.1 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in St. Lawrence County get to work?
74.8% of St. Lawrence County's workers drive alone and 7.3% work from home. The average trip to work takes 21.0 minutes. The unemployment rate in 2020-2024 averaged 5.3%.
| Measure | St. Lawrence County | New York | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 53.3%±1.0 pts | 62.7% | – |
| Unemployment rate | 5.3%±0.8 pts | 6.4% | −2.1 pts |
| Drove alone to work | 74.8%±1.8 pts | 48.8% | – |
| Carpooled | 9.2%±1.3 pts | 6.3% | – |
| Public transportation | 0.3%±0.2 pts | 21.6% | – |
| Walked | 6.7%±0.8 pts | 5.6% | – |
| Worked from home | 7.3%±0.8 pts | 14.9% | +2.2 pts |
| Mean travel time to work | 21.0 min±0.8 | 32.6 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are St. Lawrence County's census tracts?
St. Lawrence County is divided into 30 census tracts. Among those with a reliable estimate, median household income runs from $38,797 (Tract 4909) to $92,500 (Tract 4923.02).
All 30 census tracts of St. Lawrence County, with their figures
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does St. Lawrence County compare with New York's other counties?
| Measure | Rank |
|---|---|
| Population | 27th of 62 |
| Growth 2020-2025 | 54th of 62 |
| Residents per square mile | 57th of 62 |
| Median household income | 58th of 62 |
| Median home value | 60th of 62 |
| Median gross rent | 58th of 62 |
| Poverty rate | 7th of 62 |
| Bachelor's degree or higher | 44th of 62 |
| Median age | 51st of 62 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for St. Lawrence County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.