Jefferson County, WI Demographics
Jefferson County, WI is the 20th most populous of 72 counties in Wisconsin, with 84,900 residents across 556 square miles. That is about 153 people per square mile.
At the 2020 census
| Population | 84,900 |
|---|---|
| Land area | 556 sq mi |
| Density | 153 / 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, WI
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Jefferson County, WI — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Jefferson County, WI
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 1016 | 6,844 | 60.7 | 113 |
| Census Tract 1005 | 6,837 | 9.2 | 741 |
| Census Tract 1013 | 6,017 | 6.8 | 882 |
| Census Tract 1004 | 5,921 | 80.7 | 73 |
| Census Tract 1017.02 | 5,519 | 38.4 | 144 |
| Census Tract 1001 | 5,396 | 6.7 | 807 |
| Census Tract 1007 | 4,982 | 45.7 | 109 |
| Census Tract 1011 | 4,373 | 4.8 | 908 |
| Census Tract 1008 | 4,038 | 55.8 | 72 |
| Census Tract 1015 | 3,976 | 2.9 | 1,395 |
| Census Tract 1009 | 3,801 | 77.7 | 49 |
| Census Tract 1003.01 | 3,737 | 4.0 | 938 |
| Census Tract 1010 | 3,678 | 6.0 | 618 |
| Census Tract 1002 | 3,586 | 0.6 | 6,145 |
| Census Tract 1006.02 | 3,437 | 41.8 | 82 |
| Census Tract 1014 | 3,355 | 2.5 | 1,354 |
| Census Tract 1003.02 | 2,358 | 1.3 | 1,804 |
| Census Tract 1012.01 | 2,277 | 38.6 | 59 |
| Census Tract 1012.02 | 1,678 | 16.5 | 102 |
| Census Tract 1006.01 | 1,656 | 25.5 | 65 |
| Census Tract 1017.01 | 1,434 | 30.3 | 47 |
Related places
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Nearest counties
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.