Lake Koshkonong

County:: Dane County
County Seat:: No
Area (mi²):: 14.103
State:: Wisconsin

Lake Koshkonong is a CDP located in Dane County, Wisconsin. Lake Koshkonong has a 2025 population of 943. Lake Koshkonong is currently declining at a rate of -1.77% annually and its population has decreased by -1.57% since the most recent census, which recorded a population of 958 in 2020.

The average household income in Lake Koshkonong is $122,520 with a poverty rate of 6%.The median age in Lake Koshkonong is 56.6 years: 54.8 years for males, and 57.4 years for females.

Demographics

The racial composition of Lake Koshkonong includes 97.05% White, and smaller percentages for Black or African American, Two or more races, Asian, other race and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	954	97.05%
Black or African American	13	1.32%
Two or more races	12	1.22%
Asian	2	0.2%
Other race	2	0.2%

Lake Koshkonong Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lake Koshkonong's average per capita income is $54,803. Household income levels show a median of $93,125. The poverty rate stands at 6%.

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	$96,827	-
Families	$95,865	$142,339
Households	$93,125	$122,520
Non Families	$64,830	$89,060

$54,803

Average Income

$93,125

Median Household Income

6%

Poverty Rate