St. Lawrence County: Demographics & People
St. Lawrence County's population stands at 107,226 people. Median age 39.3 years. (1.1y younger than New York). Population is 3% Hispanic or Latino and 2% Black. County is losing 477 residents per year (2022-2023). County health: 40% adult obesity, 22% smoke.
Population & Trend
Current population 107,226; figures track the most recent Census ACS 5-year estimates.
| Population | 107,226 people |
|---|---|
| Total Town Population | 51,418 people |
Age Distribution
Median age 39.3y is 0.4 years older than the U.S. median (38.9y).
| Age Summary · Total Pop | 107,226 |
|---|---|
| Age Summary · Under 18 | 21,313 |
| Age Summary · 18 To 34 | 26,554.0× |
| Age Summary · 35 To 64 | 39,207.0× |
| Age Summary · 65 Plus | 20,152 |
| Age Summary · Pct Under 18 | 19.9% |
| Age Summary · Pct 18 To 34 | 24.8% |
| Age Summary · Pct 35 To 64 | 36.6% |
| Median age | 39.3 years (vs New York 40.4y) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Race, Ethnicity & Diversity
Of 107,226 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| Census Demographics · Total Population | 107,226 people |
|---|---|
| White residents | 98,372 |
| Black residents | 2,172 |
| Asian residents | 1,185 |
| Census Demographics · Aian | 541 |
| Census Demographics · Nhpi | 8 |
| Census Demographics · Other Race | 785 |
| Census Demographics · Two Or More Races | 4,163 |
| Diversity Index | 15.6% |
| Asian population | 1.1% |
| Black population | 2.0% |
| Hispanic or Latino population | 2.5% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Census Citizenship · Total | 107,226 |
|---|---|
| Census Citizenship · Native | 103,291 |
| Residents born in this state | 86,520 |
| Residents born in another state | 15,710 |
| Census Citizenship · Foreign Born | 3,635 |
| Census Citizenship · Naturalized | 2,276 |
| Census Citizenship · Non Citizen | 1,061 |
| Foreign-born residents | 3.4% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Residential Stability & Migration
How long residents have lived here and where they came from. The surrounding county is losing 477 residents per year on net (IRS migration data).
| Migration · People moving in (annual) | 81,448 |
|---|---|
| Migration · People moving out (annual) | 81,925 |
| Migration · Net migration (in − out) | -477 |
| Migration · Year | 2022-2023 |
Sources: IRS SOI Migration 2022-2023
Disability
Census ACS measures self-reported functional limitations — vision, hearing, mobility, cognitive, self-care, or independent-living. The U.S. baseline disability rate is about 12–13%; rates trend higher with median age.
| Census Disability · Total Pop | 104,814 |
|---|---|
| With Disability | 18,522 |
| Pct With Disability | 17.7% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Group Quarters
Group quarters are non-household living arrangements counted by the Census — college dormitories, nursing homes, military barracks, group homes, correctional facilities, and similar institutional or shared housing. 0 residents live in group quarters.
| Census Group Quarters · Total | 10,723 |
|---|
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Other
| Census Mobility · Total | 106,401 |
|---|---|
| Census Mobility · Same House | 94,843 |
| Census Mobility · Same County | 6,987 |
| Census Mobility · Diff County Same State | 3,074 |
| Census Mobility · Diff State | 1,226 |
| Census Mobility · From Abroad | 271 |
| Census Mobility · Moved Total | 11,558 |
| Census Mobility · Pct Moved In Year | 10.9% |
| Pct White | 91.7% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28