Jefferson County Summary

Life in Jefferson County research summary. HomeSnacks has been researching the quality of life in Jefferson County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in Jefferson County:

  • The population in Jefferson County is 85,932.

  • The median home value in Jefferson County is $309,567.

  • The median income in Jefferson County is $77,018.

  • The median rent in Jefferson County is $981.

  • The unemployment rate in Jefferson County is 3.4%.

  • The poverty rate in Jefferson County is 7.6%.

  • The average high in Jefferson County is 64.9° and there are 75.1 inches of rainfall annually.

Cities & Towns in Jefferson County

List Of Cities & Towns in Jefferson County

Watertown, WI Population 22,978

Whitewater, WI Population 15,725

Fort Atkinson, WI Population 12,522

Jefferson, WI Population 7,778

Lake Mills, WI Population 6,280

Waterloo, WI Population 3,511

Johnson Creek, WI Population 3,337

Palmyra, WI Population 2,097

Ixonia, WI Population 2,064

Lake Ripley, WI Population 1,982

Cambridge, WI Population 1,442

Lake Koshkonong, WI Population 995

Sullivan, WI Population 664

Rome, WI Population 582

Hebron, WI Population 338

Lac La Belle, WI Population 252

Helenville, WI Population 177

Map Of Jefferson County

Jefferson County, WI Weather

  • The average high in Jefferson County is 64.9°.

  • There are 72.15 nice days each year.

  • Expect an average of 75.1 inches of rain each year with 12.4 inches of snow.

  • There is an average of 4:31 hours of sun each day in Jefferson County.

StatJefferson County
Mean High64.9
Nice Days72.15
Rainfall75.1
Snowfall12.4
Sunny_hours4:31
64.9°
Average High
75.1
Inches of Rain

Jefferson County Photos

Fa   Block Main Street Even West Side
Source: Wikipedia User Scott Catron | GFDL
Rock River Flood Ftatkinson
Source: Wikipedia User Scott Catron | GFDL
Fort Atkinson From Rock River
Source: Wikipedia User Scott Catron | GFDL
Jeffersonwisconsindowntown
Source: Wikipedia User self | CC BY-SA 2.5
Jeffersonwisconsindotsign
Source: Wikipedia User self | CC BY-SA 2.5
Jeffersonwisconsinwelcomesign
Source: Wikipedia User self | CC BY-SA 2.5

Jefferson County Demographics

Population over time in Jefferson County

The current population in Jefferson County is 85,932. The population has increased 0.1% from 2019.

Year Population % Change
2022 84,808 -0.0%
2021 84,837 0.2%
2020 84,701 -

Gender in Jefferson County

  • Jefferson County is 49.5% female with 42,525 female residents.

  • Jefferson County is 50.5% male with 43,406 male residents.

Female
49.5% (42,525)
Male
50.5% (43,406)
Gender Jefferson County WI USA
Female 49.5% 49.9% 50.4%
Male 50.5% 50.1% 49.6%

Race / Ethnicity in Jefferson County

Jefferson County is:

  • 88.6% White with 76,161 White residents.

  • 0.9% African American with 748 African American residents.

  • 0.1% American Indian with 76 American Indian residents.

  • 0.5% Asian with 422 Asian residents.

  • 0.0% Hawaiian with 25 Hawaiian residents.

  • 0.1% Other with 79 Other residents.

  • 2.3% Two Or More with 1,990 Two Or More residents.

  • 7.5% Hispanic with 6,431 Hispanic residents.

White
88.6% (76,161)
African American
0.9% (748)
American Indian
0.1% (76)
Asian
0.5% (422)
Hawaiian
0.0% (25)
Other
0.1% (79)
Two Or More
2.3% (1,990)
Hispanic
7.5% (6,431)

Table: Jefferson County By Race

Race Jefferson County WI USA
White 88.6% 79.9% 58.9%
African American 0.9% 6.1% 12.1%
American Indian 0.1% 0.6% 0.6%
Asian 0.5% 2.8% 5.7%
Hawaiian 0.0% 0.0% 0.2%
Other 0.1% 0.2% 0.4%
Two Or More 2.3% 3.0% 3.5%
Hispanic 7.5% 7.3% 18.7%

Household Income For Jefferson County, Wisconsin

  • 3.8% of households in Jefferson County earn Less than $10,000.

  • 2.4% of households in Jefferson County earn $10,000 to $14,999.

  • 5.4% of households in Jefferson County earn $15,000 to $24,999.

  • 7.5% of households in Jefferson County earn $25,000 to $34,999.

  • 10.8% of households in Jefferson County earn $35,000 to $49,999.

  • 18.7% of households in Jefferson County earn $50,000 to $74,999.

  • 13.8% of households in Jefferson County earn $75,000 to $99,999.

  • 22.0% of households in Jefferson County earn $100,000 to $149,999.

  • 9.9% of households in Jefferson County earn $150,000 to $199,999.

  • 5.7% of households in Jefferson County earn $200,000 or more.

Less than $10,000
3.8% (3,227)
$10,000 to $14,999
2.4% (2,048)
$15,000 to $24,999
5.4% (4,659)
$25,000 to $34,999
7.5% (6,468)
$35,000 to $49,999
10.8% (9,250)
$50,000 to $74,999
18.7% (16,086)
$75,000 to $99,999
13.8% (11,881)
$100,000 to $149,999
22.0% (18,871)
$150,000 to $199,999
9.9% (8,539)
$200,000 or more
5.7% (4,898)
Income Jefferson County WI USA
Less than $10,000 3.8% 4.0% 4.9%
$10,000 to $14,999 2.4% 3.4% 3.8%
$15,000 to $24,999 5.4% 6.6% 7.0%
$25,000 to $34,999 7.5% 7.9% 7.4%
$35,000 to $49,999 10.8% 11.4% 10.7%
$50,000 to $74,999 18.7% 18.2% 16.1%
$75,000 to $99,999 13.8% 14.2% 12.8%
$100,000 to $149,999 22.0% 18.4% 17.1%
$150,000 to $199,999 9.9% 8.2% 8.8%
$200,000 or more 5.7% 7.6% 11.4%

Highest level of educational attainment in Jefferson County for adults over 25

  • 2.0% of adults in Jefferson County completed < 9th grade.

  • 4.0% of adults in Jefferson County completed 9-12th grade.

  • 33.0% of adults in Jefferson County completed high school / ged.

  • 22.0% of adults in Jefferson County completed some college.

  • 11.0% of adults in Jefferson County completed associate's degree.

  • 20.0% of adults in Jefferson County completed bachelor's degree.

  • 6.0% of adults in Jefferson County completed master's degree.

  • 1.0% of adults in Jefferson County completed professional degree.

  • 1.0% of adults in Jefferson County completed doctorate degree.

< 9th Grade
2% (1,718)
9-12th Grade
4% (3,437)
High School / GED
33% (28,357)
Some College
22% (18,905)
Associate's Degree
11% (9,452)
Bachelor's Degree
20% (17,186)
Master's Degree
6% (5,155)
Professional Degree
1% (859)
Doctorate Degree
1% (859)
Education Jefferson County WI USA
< 9th Grade 2% 3% 3%
9-12th Grade 4% 4% 6%
High School / GED 33% 30% 26%
Some College 22% 20% 20%
Associate's Degree 11% 11% 9%
Bachelor's Degree 20% 21% 21%
Master's Degree 6% 8% 10%
Professional Degree 1% 2% 2%
Doctorate Degree 1% 1% 2%

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