Madison Flag

Madison

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

Madison is located in Johnson County, Iowa. Madison has a 2025 population of 4,001 . Madison 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 is $181,729 with a poverty rate of 4.22%. The median age in Madison is 34.6 years: 31.2 years for males, and 36 years for females. For every 100 females there are 108.9 males.

4K
Total Population
172
Density (mi²)

Madison Population

Madison Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

White (85.95%)

Black or African American (4.4%)

Asian (4.15%)

Two or more races (3.97%)

Other race (1.52%)

Race
Population
Percentage (of total)
White3,43985.95%
Black or African American1764.4%
Asian1664.15%
Two or more races1593.97%
Other race611.52%

Madison Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Madison'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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)