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St. Lawrence County, NY Demographics

St. Lawrence County, NY is the 27th most populous of 62 counties in New York, with 108,505 residents across 2,679 square miles. That is about 40 people per square mile.

At the 2020 census

Population 108,505
Land area 2,679 sq mi
Density 40 / sq mi

Data: 2020 Census · American Community Survey 2024

How St. Lawrence County compares to the US

We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: St. Lawrence County, NY

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around St. Lawrence County, NY — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in St. Lawrence County, NY

Name Population Sq mi Per sq mi
Census Tract 4927 6,551 71.2 92
Census Tract 4907 6,443 185.0 35
Census Tract 4926 5,813 250.4 23
Census Tract 4920 5,618 50.6 111
Census Tract 4903 5,469 23.8 230
Census Tract 4914 4,595 3.4 1,346
Census Tract 4921 4,491 53.3 84
Census Tract 4918 4,472 178.6 25
Census Tract 4910 4,456 58.3 76
Census Tract 4906 4,453 56.7 78
Census Tract 4913 4,221 108.3 39
Census Tract 4917 4,158 65.5 63
Census Tract 4905 3,979 104.6 38
Census Tract 4902 3,633 3.0 1,206
Census Tract 4923.01 3,421 83.9 41
Census Tract 4915 3,419 0.8 4,554
Census Tract 4908 3,393 30.8 110
Census Tract 4901 3,331 17.5 190
Census Tract 4909 3,258 11.0 296
Census Tract 4904 3,050 48.5 63
Census Tract 4928 2,994 106.4 28
Census Tract 4923.02 2,523 60.2 42
Census Tract 4911 2,248 0.9 2,369
Census Tract 4924.01 2,167 72.5 30
Census Tract 4925.01 2,085 411.5 5
Census Tract 4929 2,057 100.0 21
Census Tract 4916 2,050 0.8 2,592
Census Tract 4912 1,546 0.3 5,509
Census Tract 4919 1,529 0.9 1,714
Census Tract 4930 1,082 520.5 2

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About this page

This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →