Madison Flag

Madison

County:
Lake County
County Seat:
No
Area (mi²):
35.765
State:
South Dakota

Madison is located in Lake County, South Dakota. Madison has a 2025 population of 129 . Madison is currently declining at a rate of 0% annually and its population has increased by 1.57% since the most recent census, which recorded a population of 127 in 2020.

The average household income in Madison is $101,615 with a poverty rate of 0%. The median age in Madison is 67.9 years: 67.4 years for males, and 70.8 years for females. For every 100 females there are 61.9 males.

129
Total Population
4
Density (mi²)

Madison Population

Madison Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Madison includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

White (100%)

Race
Population
Percentage (of total)
White68100%

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 $50,625. Household income levels show a median of $78,750. The poverty rate stands at 0%.

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$129,750-
Families$128,000$139,380
Households$78,750$101,615
Non Families$50,469$43,515

$50,625

Average Income

$78,750

Median Household Income

0%

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)