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Jefferson County, NY Demographics

Jefferson County, NY is the 25th most populous of 62 counties in New York, with 116,720 residents across 1,268 square miles. That is about 92 people per square mile.

At the 2020 census

Population 116,720
Land area 1,268 sq mi
Density 92 / sq mi

Data: 2020 Census · American Community Survey 2024

How Jefferson 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: Jefferson County, NY

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

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

Census tracts in Jefferson County, NY

Name Population Sq mi Per sq mi
Census Tract 608.03 9,418 6.6 1,423
Census Tract 605 5,514 86.0 64
Census Tract 616 5,175 45.1 115
Census Tract 624 4,630 103.5 45
Census Tract 608.05 4,343 4.6 946
Census Tract 607 4,204 109.9 38
Census Tract 615 4,053 2.3 1,729
Census Tract 622 3,915 1.8 2,164
Census Tract 604.01 3,896 54.1 72
Census Tract 606.02 3,858 11.9 323
Census Tract 621 3,818 0.7 5,816
Census Tract 610 3,707 22.1 168
Census Tract 619 3,560 1.3 2,705
Census Tract 618.01 3,531 46.0 77
Census Tract 606.01 3,411 46.7 73
Census Tract 618.02 3,406 16.2 210
Census Tract 608.06 3,359 6.3 533
Census Tract 625 3,305 132.1 25
Census Tract 614 3,146 0.9 3,455
Census Tract 613 3,101 1.1 2,785
Census Tract 612 3,092 0.9 3,503
Census Tract 609.01 3,067 23.0 133
Census Tract 611.02 2,892 12.7 228
Census Tract 609.02 2,656 7.1 373
Census Tract 611.01 2,427 28.2 86
Census Tract 602.03 2,419 45.4 53
Census Tract 604.02 2,382 23.4 102
Census Tract 602.02 2,360 32.9 72
Census Tract 603.02 2,351 60.3 39
Census Tract 617 2,116 58.4 36
Census Tract 601.01 2,030 61.5 33
Census Tract 601.02 1,974 28.1 70
Census Tract 602.01 1,773 19.8 90
Census Tract 603.01 1,633 45.4 36
Census Tract 9800 198 121.7 2
Census Tract 9900.01 0 0.0 —

Related places

Metro areas containing Jefferson County

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 →