Jefferson County, Wisconsin demographics
Population: 84,808
Median age: 41.8
Median household income: 71,735
Demographics, population, home values, social and economic characteristics of Jefferson County, Wisconsin.
Population
| 2021 | 84,808 |
| 2020 | 84,837 |
| 2019 | 84,701 |
| 2018 | 84,652 |
| 2017 | 84,586 |
| 2016 | 84,538 |
| 2015 | 84,345 |
| 2014 | 84,201 |
| 2013 | 83,985 |
| 2012 | 83,751 |
| 2011 | 83,308 |
| 2010 | 82,778 |
| 2009 | 79,868 |
Jefferson County, WI cities
Cambridge village - 1,284
Fort Atkinson city - 12,529
Hebron CDP - 340
Helenville CDP - 247
Ixonia CDP - 2,107
Jefferson city - 7,821
Johnson Creek village - 3,270
Lac La Belle village - 244
Lake Koshkonong CDP - 996
Lake Mills city - 6,194
Lake Ripley CDP - 1,911
Palmyra village - 2,018
Rome CDP - 645
Sullivan village - 666
Waterloo city - 3,458
Watertown city - 23,030
Whitewater city - 14,369
Census data for Jefferson County, Wisconsin
Demographic and housing estimates in Jefferson County, Wisconsin
| Total population | 84,808 |
| Male | 42,649 |
| Female | 42,159 |
| Total population | 84,808 |
| Under 5 years | 4,256 |
| 5 to 9 years | 5,093 |
| 10 to 14 years | 5,035 |
| 15 to 19 years | 6,393 |
| 20 to 24 years | 4,775 |
| 25 to 34 years | 9,579 |
| 35 to 44 years | 11,054 |
| 45 to 54 years | 11,473 |
| 55 to 59 years | 6,712 |
| 60 to 64 years | 5,931 |
| 65 to 74 years | 8,949 |
| 75 to 84 years | 4,189 |
| 85 years and over | 1,369 |
| Median age (years) | 41.8 |
| Under 18 years | 17,828 |
| 16 years and over | 69,453 |
| 18 years and over | 66,980 |
| 21 years and over | 62,799 |
| 62 years and over | 17,821 |
| 65 years and over | 14,507 |
| Total population | 84,808 |
| One race | 81,838 |
| White | 78,291 |
| Black or African American | 794 |
| American Indian and Alaska Native | 140 |
| Asian | 448 |
| Native Hawaiian and Other Pacific Islander | 33 |
| Some other race | 2,132 |
| Two or more races | 2,970 |
| Citizen, VOTING AGE 18 and over population | 65,290 |
| Male Citizen, VOTING AGE 18 and over population | 32,528 |
| Female Citizen, VOTING AGE 18 and over population | 32,762 |
Social characteristics in Jefferson County, Wisconsin
| Total households | 33,861 |
| Family households (families) | 17,743 |
| Married-couple family | 2,524 |
| Male householder, no wife present, family | 6,113 |
| Female householder, no husband present, family | 4,523 |
| Nonfamily households | 7,481 |
| Average household size | 10,413 |
| Average family size | 2.41 |
Economic characteristics in Jefferson County, Wisconsin
| Total households | 33,861 |
| Less than $10,000 | 1,264 |
| $10,000 to $14,999 | 947 |
| $15,000 to $24,999 | 2,076 |
| $25,000 to $34,999 | 2,914 |
| $35,000 to $49,999 | 4,189 |
| $50,000 to $74,999 | 6,386 |
| $75,000 to $99,999 | 4,780 |
| $100,000 to $149,999 | 7,202 |
| $150,000 to $199,999 | 2,589 |
| $200,000 or more | 1,514 |
| Median household income (dollars) | 71,735 |
Housing characteristics in Jefferson County, Wisconsin
| Total housing units | 36,255 |
| Occupied housing units | 33,861 |
| Vacant housing units | 2,394 |
| Total housing units | 36,255 |
| 1-unit, detached | 26,056 |
| 1-unit, attached | 1,399 |
| 2 units | 1,868 |
| 3 or 4 units | 1,271 |
| 5 to 9 units | 2,068 |
| 10 to 19 units | 884 |
| 20 or more units | 1,246 |
| Mobile home | 1,441 |
| Boat, RV, van, etc. | 22 |
| Total housing units | 36,255 |
| Built 2014 or later | 4 |
| Built 2010 to 2013 | 1,560 |
| Built 2000 to 2009 | 5,079 |
| Built 1990 to 1999 | 5,706 |
| Built 1980 to 1989 | 2,552 |
| Built 1970 to 1979 | 4,510 |
| Built 1960 to 1969 | 2,636 |
| Built 1950 to 1959 | 3,401 |
| Built 1940 to 1949 | 1,840 |
| Built 1939 or earlier | 8,967 |
| Total housing units | 36,255 |
| 1 room | 308 |
| 2 rooms | 531 |
| 3 rooms | 2,085 |
| 4 rooms | 4,788 |
| 5 rooms | 7,095 |
| 6 rooms | 6,553 |
| 7 rooms | 5,344 |
| 8 rooms | 4,045 |
| 9 rooms or more | 5,506 |
| Median rooms | 6.0 |
| Total housing units | 36,255 |
| No bedroom | 341 |
| 1 bedroom | 2,916 |
| 2 bedrooms | 8,746 |
| 3 bedrooms | 17,097 |
| 4 bedrooms | 5,997 |
| 5 or more bedrooms | 1,158 |
| Occupied housing units | 33,861 |
| Owner-occupied | 24,711 |
| Renter-occupied | 9,150 |
| Average household size of owner-occupied unit | 2.51 |
| Average household size of renter-occupied unit | 2.12 |
| Occupied housing units | 33,861 |
| Moved in 2017 or later | 2,375 |
| Moved in 2015 to 2016 | 8,855 |
| Moved in 2010 to 2014 | 5,923 |
| Moved in 2000 to 2009 | 7,225 |
| Moved in 1990 to 1999 | 4,596 |
| Moved in 1989 and earlier | 4,887 |
| Owner-occupied units | 24,711 |
| Less than $50,000 | 1,383 |
| $50,000 to $99,999 | 899 |
| $100,000 to $149,999 | 3,625 |
| $150,000 to $199,999 | 5,803 |
| $200,000 to $299,999 | 7,099 |
| $300,000 to $499,999 | 4,391 |
| $500,000 to $999,999 | 1,242 |
| $1,000,000 or more | 269 |
| Median (dollars) | 207,500 |
| Owner-occupied units | 24,711 |
| Housing units with a mortgage | 16,002 |
| Housing units without a mortgage | 8,709 |
| Occupied units paying rent | 8,737 |
| Less than $500 | 701 |
| $500 to $999 | 4,834 |
| $1,000 to $1,499 | 2,841 |
| $1,500 to $1,999 | 284 |
| $2,000 to $2,499 | 4 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 73 |
| Median (dollars) | 911 |
| No rent paid | 413 |
Demographic data for Jefferson County, WI and each city in the county. Lists of cities by population, wealth and poverty in Jefferson County, WI.
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