Madison township

County:: Johnson County
County Seat:: No
Area (mi²):: 23.258
State:: Iowa

Madison township is located in Johnson County, Iowa. Madison township has a 2025 population of 4,001. Madison township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The average household income in Madison township is $181,729 with a poverty rate of 4.22%. The median age in Madison township is 34.6 years: 31.2 years for males, and 36 years for females.

Demographics

The racial composition of Madison township includes 85.95% White, 4.4% Black or African American, 4.15% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Asian

Two or more races

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	3,439	85.95%
Black or African American	176	4.4%
Asian	166	4.15%
Two or more races	159	3.97%
Other race	61	1.52%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Madison township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Madison township's average per capita income is $65,875. Household income levels show a median of $115,260. The poverty rate stands at 4.22%.

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	$143,750	-
Families	$127,500	$227,162
Households	$115,260	$181,729
Non Families	$64,871	$93,959

$65,875

Average Income

$115,260

Median Household Income

4.22%

Poverty Rate