The Town FilesJefferson County, Wisconsin
86,003 people. The median home is worth $274,100 (typical Wisconsin town: $256,000) and the median household earns $83,750.
Towns in Jefferson County
| Town | People | Median home | Income | Median age |
|---|---|---|---|---|
| Watertown | 22,926 | $222,100 | $70,107 | 40.6 |
| Fort Atkinson | 12,579 | $211,800 | $79,302 | 43.5 |
| Jefferson | 7,793 | $225,600 | $79,006 | 42.0 |
| Lake Mills | 6,211 | $317,100 | $91,027 | 40.3 |
| Ixonia | 5,120 | $335,400 | $89,427 | 44.9 |
| Koshkonong | 3,763 | $391,700 | $102,831 | 45.2 |
| Waterloo | 3,492 | $230,600 | $87,776 | 37.8 |
| Johnson Creek | 3,318 | $314,200 | $100,685 | 34.9 |
| Oakland | 3,231 | $353,900 | $94,603 | 51.0 |
| Ixonia | 2,367 | $345,300 | $93,359 | 41.6 |
| Sullivan | 2,295 | $307,300 | $85,833 | 51.3 |
| Lake Mills | 2,196 | $453,800 | $119,485 | 47.8 |
| Jefferson | 2,067 | $405,600 | $99,667 | 55.3 |
| Concord | 1,981 | $365,900 | $107,969 | 51.6 |
| Watertown | 1,933 | $348,900 | $99,886 | 47.0 |
| Lake Ripley | 1,911 | $366,300 | $116,179 | 52.5 |
| Palmyra | 1,719 | $213,100 | $86,058 | 36.2 |
| Farmington | 1,407 | $372,100 | $88,021 | 50.7 |
| Aztalan | 1,382 | $381,100 | $105,000 | 52.3 |
| Lake Koshkonong | 1,239 | $370,300 | $97,115 | 54.0 |
| Palmyra | 1,220 | $349,100 | $86,250 | 53.2 |
| Milford | 1,106 | $388,000 | $88,355 | 41.6 |
| Hebron | 1,043 | $314,100 | $94,438 | 52.0 |
| Waterloo | 867 | $435,000 | $125,000 | 39.1 |
| Sumner | 846 | $328,600 | $86,429 | 56.9 |
| Rome | 752 | $326,200 | $92,083 | 41.2 |
| Cold Spring | 737 | $359,400 | $125,000 | 35.5 |
| Sullivan | 651 | $257,400 | $71,250 | 42.6 |
People and housing
| Jefferson County | Typical Wisconsin town | |
|---|---|---|
| Median home value | $274,100 | $256,000 |
| Median rent | $1,035 | $951 |
| Median household income | $83,750 | $82,217 |
| Median age | 41.5 | 45.1 |
| Bachelor's degree or higher | 28.5% | 23.8% |
| Below the poverty line | 8.1% | 7.2% |
Jobs and pay
33,615 jobs in 2024, average pay $54,167 a year.
Storms since 1996
NOAA recorded 967 storm events in Jefferson County from 1996 to 2026, with 12 deaths.
Federal disaster declarations
Jefferson County has been included in 14 FEMA declarations since 1953.
| Declared | Incident | Declaration |
|---|---|---|
| June 30, 2026 | Flood | DR-4923: Severe Storms, Tornadoes, And Flooding |
| April 4, 2020 | Biological | DR-4520: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3454: Covid-19 |
| June 14, 2008 | Severe Storm | DR-1768: Severe Storms, Tornadoes, And Flooding |
| March 19, 2008 | Snowstorm | EM-3285: Record Snow And Near Record Snow |
| August 26, 2007 | Severe Storm | DR-1719: Severe Storms And Flooding |
Sources: U.S. Census Bureau ACS 2020–2024; BLS QCEW and LAUS; NOAA Storm Events; FEMA OpenFEMA (not endorsed by FEMA).