Chelsea is a city located in South Dakota. With a 2020 population of 29, it is the 296th largest city in South Dakota and the 19315th largest city in the United States. Chelsea is currently growing at a rate of 3.57% annually and its population has increased by 7.41% since the most recent census, which recorded a population of 27 in 2010. Spanning over 0 miles, Chelsea has a population density of 92 people per square mile.
The average household income in Chelsea is $92,879 with a poverty rate of 0.00%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Chelsea is 45.3 years, 35.8 years for males, and 45.5 years for females. For every 100 females there are 116.7 males.