Sullivan

County:: Jefferson County
County Seat:: No
Area (mi²):: 1.133
State:: Wisconsin

Sullivan is a village located in Jefferson County, Wisconsin. Sullivan has a 2025 population of 636. Sullivan is currently declining at a rate of -0.47% annually and its population has decreased by -2.3% since the most recent census, which recorded a population of 651 in 2020.

The average household income in Sullivan is $86,708 with a poverty rate of 23.02%. The median age in Sullivan is 40.5 years: 42.2 years for males, and 39.2 years for females.

Demographics

The racial composition of Sullivan includes 98.17% White, and smaller percentages for Two or more races, Asian, Native American, other race, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Native American

Other race

Black or African American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	698	98.17%
Two or more races	8	1.13%
Asian	3	0.42%
Native American	1	0.14%
Other race	1	0.14%
Black or African American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Sullivan Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sullivan's average per capita income is $47,083. Household income levels show a median of $82,500. The poverty rate stands at 23.02%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$103,333	-
Families	$100,469	$107,243
Households	$82,500	$86,708
Non Families	$45,625	$61,458

$47,083

Average Income

$82,500

Median Household Income

23.02%

Poverty Rate