Long Lake is a city located in South Dakota. With a 2020 population of 31, it is the 294th largest city in South Dakota and the 19296th largest city in the United States. Long Lake is currently declining at a rate of 0.00% annually and its population has decreased by 0.00% since the most recent census, which recorded a population of 31 in 2010. Long Lake reached it's highest population of 31 in 2010. Spanning over 0 miles, Long Lake has a population density of 112 people per square mile.
The average household income in Long Lake is $54,357 with a poverty rate of 0.00%. The median rental costs in recent years comes to - per month, and the median house value is $25,000. The median age in Long Lake is 52.8 years, 57.3 years for males, and 52.6 years for females. For every 100 females there are 94.7 males.