Groton is a city located in South Dakota. With a 2020 population of 1,529, it is the 42nd largest city in South Dakota and the 8643rd largest city in the United States. Groton is currently growing at a rate of 0.92% annually and its population has increased by 4.87% since the most recent census, which recorded a population of 1,458 in 2010. Spanning over 2 miles, Groton has a population density of 873 people per square mile.
The average household income in Groton is $92,692 with a poverty rate of 6.85%. The median rental costs in recent years comes to $819 per month, and the median house value is $166,300. The median age in Groton is 38.1 years, 37.3 years for males, and 39.2 years for females. For every 100 females there are 81.2 males.