St. Lawrence County, New York Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 27th-largest in New York
The population of St. Lawrence County, New York is 107,796 as of the 2023 American Community Survey, making it the 27th-largest county in New York. The median household income is $61,900, the median home value is $119,800, and the median age is 39.0.
The population of St. Lawrence County has declined 5.0% since 2010 (111,821 → 106,198), a -0.37% annualized rate.
107,796
Population
-0.37%
Annual growth
40
People / sq mi
$61,900
Median Income
$119,800
Median Home Value
St. Lawrence County covers 2,680 sq mi of land at 40.2 people per square mile.
About St. Lawrence County, NY
St. Lawrence County is distinguished by its share of foreign-born residents, 14.5% of the population. With 107,796 residents, St. Lawrence County is a county in New York. It ranks #27 among counties in New York by population.
The typical household here earns about $61,900, below the US median of $78,538. Poverty runs at 11.9%, close to the national 12.4%. Housing is relatively affordable, with a median home value of $119,800, with typical rent around $799.
Roughly 24.6% of adults have a bachelor’s, below the national 35.0%. Remote work is below the national 14.0% at 7.1%, and the average commute runs about 21 minutes each way.
St. Lawrence County Population History (2010-2024)
The county of St. Lawrence County had a population of 111,821 in 2010 and 106,198 in 2024, a -5.0% growth over 14 years. The peak was 112,388 in 2012. Average annual growth rate: -0.37%.
106,198
Population (2024)
111,821
Population (2010)
112,388
Peak (2012)
-0.37%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 111,821 |
| 2011 | 112,290 |
| 2012 | 112,388 |
| 2013 | 111,967 |
| 2014 | 111,476 |
| 2015 | 110,399 |
| 2016 | 109,506 |
| 2017 | 108,768 |
| 2018 | 108,534 |
| 2019 | 107,766 |
| 2020 | 108,327 |
| 2021 | 107,835 |
| 2022 | 107,043 |
| 2023 | 106,727 |
| 2024 | 106,198 |
Race & Ethnicity
| White | 92.1% |
| Black or African American | 2.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.6% |
| Two or More Races | 0.0% |
Age & Sex
39.0
Median Age
49.0%
Female
51.0%
Male
18.4%
Age 65+
Age Distribution
Children (under 15): 16.3% · Seniors (65+): 18.4%
Income & Poverty
| Median household income | $61,900$-22,678 vs state |
| Mean household income | $78,890 |
| Per-capita income | $31,574 |
| Poverty rate | 11.9%+2.1% vs state |
| Unemployment rate | 3.0% |
| Employment-to-population | 50.1% |
Top Industries by Employment
The largest employment sector in St. Lawrence County is professional & business services, accounting for 35.3% of workers.
How residents commute
0.3%
Drive alone
6.7%
Carpool
75.0%
Public transit
7.1%
Work from home
21.0 min
Avg commute
Housing
$119,800$-283,200 vs state
Median home value
$799
Median rent
71.5%
Homeownership rate
51,884
Total housing units
80.4%
Occupied
19.6%
Vacant
28.5%
Renter-occupied
Social & access
94.1%
With health insurance
90.5%
With broadband internet
14.5%
Foreign-born
7.1%
Veterans (18+)
17.7%
With a disability
93.0%
Speak language other than English at home
Education
89.1%
High School+
24.6%
Bachelor's+
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Part of New York
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County rankings
Frequently Asked Questions
St. Lawrence County, New York has a population of 107,796 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 27th-largest county in New York. Population density is 40 people per square mile.
The population of St. Lawrence County has declined 5.0% since 2010 (111,821 → 106,198), a -0.37% annualized rate.
The median household income in St. Lawrence County, New York is $61,900, with mean (average) household income of $78,890 and per-capita income of $31,574. 11.9% of residents live below the federal poverty level.
In St. Lawrence County, the largest racial and ethnic groups are White (92.1%), Black or African American (2.0%), Hispanic or Latino (1.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in St. Lawrence County, New York is 39.0 years. Residents are 49.0% female and 51.0% male.
The median home value in St. Lawrence County is $119,800 and median monthly rent is $799. 71.5% of occupied housing units are owner-occupied. The county has 51,884 total housing units, 19.6% of which are vacant.
The largest employment sector in St. Lawrence County, New York is professional, scientific, and management services, employing 35.3% of workers. The unemployment rate is 3.0%.
New York is among the largest cities associated with St. Lawrence County, New York, with a population of 8,516,202.
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Statewide data for New York
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.