Madison Flag

Madison

County:
Lake County
County Seat:
Yes
Area (mi²):
4.616
State:
South Dakota

Madison is a city located in Lake County, South Dakota. Madison has a 2026 population of 6,048. It is also the county seat of Lake County. Madison is currently declining at a rate of -0.31% annually and its population has decreased by -1.83% since the most recent census, which recorded a population of 6,161 in 2020.

The median household income in Madison is $65,593 with a poverty rate of 9.46%. The median age in Madison is 40.1 years: 36.5 years for males, and 43.4 years for females. For every 100 females there are 105.8 males.

6K
Total Population
1,310
Density (mi²)
-19 -0.31%
Growth

Madison Population

Madison Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20266,048-19-0.31%
20256,067-19-0.31%
20246,086-11-0.18%
20236,097180.3%
20226,079200.33%
20216,059-102-1.66%
20206,161-32-0.52%
20197,246-177-2.38%
20187,4231071.46%
20177,316871.2%
20167,2291462.06%
20157,0831261.81%
20146,9571021.49%
20136,855681%
20126,7871071.6%
20116,6801472.25%
20106,533590.91%
20006,5402834.52%
19906,257470.76%
19806,210-105-1.66%
19706,31589516.51%
19605,4202675.18%
19505,1531352.69%
19405,01872917%
19304,2891453.5%
19204,1441,00732.1%
19103,13758723.02%
19002,55000%

Median Age

Overall: 40.1 years
Female: 43.4 years
Male: 36.5 years

Madison Adults

There are 4,930 adults, (1,384 of whom are seniors) in Madison.

Sex Ratio

Female: 2,961 (48.6%)
Male: 3,133 (51.4%)

Demographics

The racial composition of Madison includes 94.5% White, and smaller percentages for Two or more races, Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White5,75994.5%
Two or more races1292.12%
Black or African American801.31%
Native American580.95%
Asian490.8%
Native Hawaiian or Pacific Islander190.31%
Race
Population ↓
Percentage (of total)
White1983.25%
Two or more races600.98%
Native American60.1%
Race
Population ↓
Percentage (of total)
White5,56191.25%
Black or African American801.31%
Two or more races691.13%
Native American520.85%
Asian490.8%
Native Hawaiian or Pacific Islander190.31%

Madison Marital Status

Economics and Income Statistics

Madison 's average per capita income is $43,560. Household income levels show a median of $65,593. The poverty rate stands at 9.46%.

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$96,295-
Families$78,550$100,688
Households$65,593$80,632
Non Families$42,705$55,249

$43,560

Average Income

$65,593

Median Household Income

9.46%

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)