The Town FilesSullivan, Wisconsin
Town in Jefferson County · population 2,295 (2020 Census)
- Median home
- $307,300
- Household income
- $85,833
- Jan low / Jul high
- 11° / 82°
- Snow a year
- 51 in
- Tornadoes ≤10 mi since 1950
- 28
- Median age
- 51.3
Sullivan is a town of 2,295 people in Jefferson County, Wisconsin. The median home is worth $307,300, above the typical Wisconsin town ($256,000). It ranks better for retirees than 93% of Wisconsin towns, easier by car than 85% of Wisconsin towns, more of a college town than 77% of Wisconsin towns.
How Sullivan ranks
Percentile among Wisconsin towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of Wisconsin towns.
Homes and cost of living
The median home in Sullivan is worth $307,300, above the typical Wisconsin town ($256,000). Homes cost about 3.6 times the median household income of $85,833, which is more affordable than 27% of Wisconsin towns. Median rent is $1,043 a month. 92.2% of households own their home.
| Housing | Sullivan | Typical Wisconsin town |
|---|---|---|
| Median home value | $307,300 | $256,000 |
| Median rent | $1,043 | $951 |
| Median household income | $85,833 | $82,217 |
| Home value ÷ income | 3.6× | 3.1× |
| Homeownership | 92.2% | 86.8% |
| Median year built | 1990 | 1978 |
| Seasonal / vacation homes | 3.6% | — |
Who lives in Sullivan
| People | Sullivan | Typical Wisconsin town |
|---|---|---|
| Median age | 51.3 | 45.1 |
| Age 65 and over | 18.0% | 21.0% |
| Under 18 | 15.8% | — |
| Bachelor's degree or higher | 23.6% | 23.8% |
| Below the poverty line | 6.7% | 7.2% |
| Veterans | 5.4% | — |
| Born outside the U.S. | 0.3% | — |
| Work from home | 7.2% | 10.9% |
| Average commute | 36.0 min | 24.6 min |
| Homes with broadband | 93.6% | 89.1% |
Weather in Sullivan
July highs average 82.1°F and January lows 11.3°F. About 37.5 inches of rain and melted snow fall a year, with 50.7 inches of snow (typical Wisconsin town: 45.7 in). Expect about 12 days a year at 90°F or hotter and 148 nights at or below freezing.
Tornadoes, storms and disasters
28 tornadoes have passed within 10 miles of Sullivan since 1950, compared with 15 for the typical Wisconsin town. 8 rated (E)F2 or stronger. The strongest, an F3, struck on June 5, 1980 about 7.2 miles from the town center. The most recent was on July 28, 2023.
Hail of 1 inch or larger has been reported within 10 miles 43 times; the largest was 2.25 inches on July 2, 2000.
Severe weather in Jefferson County since 1996
Jefferson County has been included in 14 federal disaster or emergency declarations since 1953, most often for flood, drought, tornado.
| 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 |
Jobs and pay in Jefferson County
Jefferson County had 33,615 jobs in 2024, paying an average of $54,167 a year. Unemployment was 2.8% in 2023; in Sullivan itself the ACS puts it at 6.6%.
Towns near Sullivan
- Rome, WI2.1 mi · 752 people · home $326,200
- Sullivan, WI3.0 mi · 651 people · home $257,400
- Palmyra, WI5.8 mi · 1,220 people · home $349,100
- Hebron, WI5.9 mi · 1,043 people · home $314,100
- Ottawa, WI6.2 mi · 3,646 people · home $425,900
- Palmyra, WI6.3 mi · 1,719 people · home $213,100
- Concord, WI6.6 mi · 1,981 people · home $365,900
- Dousman, WI7.4 mi · 2,419 people · home $392,800
Sullivan questions
Is Sullivan, Wisconsin a good place to retire?
On The Town Files lifestyle rankings, Sullivan scores better for retirees than 93% of Wisconsin towns and quieter than 76%. 18.0% of residents are 65 or older (median age 51.3).
How much does a house cost in Sullivan?
The median owner-occupied home in Sullivan is valued at $307,300 (Census ACS 2020–2024), against a median household income of $85,833, so homes cost about 3.6 times income. Median rent is $1,043 a month.
What is the weather like in Sullivan?
July highs average 82.1°F and January lows 11.3°F (NOAA 1991–2020 normals). It gets about 37.5 inches of precipitation a year and 50.7 inches of snow.
Does Sullivan get tornadoes?
28 tornadoes have passed within 10 miles of Sullivan since 1950 (NOAA Storm Events); the strongest was a F3 on June 5, 1980. The typical Wisconsin town has had 15.
- U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024)
- U.S. Census Bureau, 2020 Census and 2025 Gazetteer (2020 / 2025)
- NOAA NCEI U.S. Climate Normals (1991–2020)
- NOAA NCEI Storm Events Database (1950–2026)
- FEMA OpenFEMA Disaster Declarations (this product uses the FEMA OpenFEMA API but is not endorsed by FEMA) (1953–2026)
- NCES Common Core of Data (2023–24)
- BLS Quarterly Census of Employment and Wages; USDA ERS county unemployment (BLS LAUS) (2000–2024)
- The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025)