Chelsea demographics profile

StatisticChelseaSouth DakotaNational
Population density (sq mi)1201191
Median age47.336.837.7
Male/Female ratio1.1:11.0:11.0:1
Married (15yrs & older)66%59%55%
Speak English89%94%79%
Speak Spanish0%2%13%
Chelsea, SD has a population of 38 and is the 28,431st largest city in the United States. The population density is 120 per sq mi which is 1009% higher than the South Dakota average and 32% higher than the national average. The median age in Chelsea is 47 which is approximately 29% higher than the South Dakota average of 37. In Chelsea, 66% of the population over 15 years of age are married, 89% speak English and 0% speak Spanish. 68% of Chelsea residents were born in South Dakota, 21% were born out of state, 0% were born outside of the United States and 11% were foreign born.

Did you know?

  • The population density in Chelsea is 1009% higher than South Dakota.
  • The median age in Chelsea is 29% higher than South Dakota.
  • In Chelsea 89.47% of the population is Caucasian.
  • In Chelsea 0.00% of the population is African American.
  • In Chelsea 10.53% of the population is Asian.

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Chelsea population breakdown by race

RaceChelseaSouth DakotaNational
African American0.00%1.65%12.63%
American Indian0.00%8.72%0.82%
Native Hawaiian0.00%0.04%0.18%
Mixed race0.00%2.61%3.06%
Other race0.00%0.88%4.75%
In Chelsea, 0.0% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Chelsea age breakdown

Marital status

Age of children in married couples

Source: The Chelsea, SD demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).