St. Lawrence County's estimated 2026 population is 105,140 with a growth rate of -0.5% in the past year according to the most recent United States census data. St. Lawrence County is the 28th largest county in New York. The 2010 population was 111,821 and has seen a growth of -5.97% since that time.
Data after 2023 is projected based on recent change
The racial composition of St. Lawrence County includes 92.11% White, and smaller percentages for Black or African American, Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (92.11%)
Two or more races (3.74%)
Black or African American (1.96%)
Asian (1.03%)
Other race (0.71%)
Native American (0.44%)
Native Hawaiian or Pacific Islander (0%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 99,295 | 92.11% |
| Two or more races | 4,036 | 3.74% |
| Black or African American | 2,118 | 1.96% |
| Asian | 1,108 | 1.03% |
| Other race | 760 | 0.71% |
| Native American | 474 | 0.44% |
| Native Hawaiian or Pacific Islander | 5 | 0% |
Married
Widowed
Divorced
Separated
Never Married
St. Lawrence County's average per capita income is $46,126. Household income levels show a median of $61,900. The poverty rate stands at 17.43%.
Name | Median | Mean |
|---|---|---|
| Married Families | $96,259 | $110,494 |
| Families | $80,918 | $97,505 |
| Households | $61,900 | $78,890 |
| Non Families | $32,170 | $45,913 |
Average Income
Median Household Income
Poverty Rate