Lake Madison Flag

Lake Madison

County:
Lake County
County Seat:
No
Area (mi²):
4.721
State:
South Dakota

Lake Madison is a CDP located in Lake County, South Dakota. Lake Madison has a 2025 population of 892. Lake Madison is currently growing at a rate of 1.59% annually and its population has increased by 9.99% since the most recent census, which recorded a population of 811 in 2020.

The average household income in Lake Madison is $198,189 with a poverty rate of 12.88%.The median age in Lake Madison is 61.3 years: 61.8 years for males, and 60.2 years for females.

892
Total Population
189
Density (mi²)
14 1.59%
Growth

Lake Madison Population

Lake Madison Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Lake Madison includes 80% White, 8.59% Native American, and smaller percentages for and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White70880%
Two or more races10111.41%
Native American768.59%

Lake Madison Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lake Madison's average per capita income is $36,875. Household income levels show a median of $116,648. The poverty rate stands at 12.88%.

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$127,500-
Families$121,827$228,603
Households$116,648$198,189
Non Families$87,500$118,106

$36,875

Average Income

$116,648

Median Household Income

12.88%

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)