The 2016 Madison, South Dakota, population is 7,258. There are 1,572 people per square mile (population density).
The median age is 31.7. The US median is 37.4. 44.19% of people in Madison, South Dakota, are married. 7.33% are divorced.
The average household size is 2.29 people. 24.18% of people are married, with children. 21.48% have children, but are single.
91.99% of people are white, 0.79% are black, 1.46% are asian, 0.09% are native american, and 0.00% claim 'Other'.
2.58% of the people in Madison, South Dakota, claim hispanic ethnicity (meaning 97.42% are non-hispanic).
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