Custer is a city located in South Dakota. With a 2020 population of 1,891, it is the 38th largest city in South Dakota and the 7809th largest city in the United States. Custer is currently declining at a rate of -1.15% annually and its population has decreased by -8.51% since the most recent census, which recorded a population of 2,067 in 2010. Custer reached it's highest population of 2,022 in 2011. Spanning over 3 miles, Custer has a population density of 747 people per square mile.
The average household income in Custer is $62,180 with a poverty rate of 10.16%. The median rental costs in recent years comes to $764 per month, and the median house value is $144,000. The median age in Custer is 56.3 years, 54.7 years for males, and 59.2 years for females. For every 100 females there are 95.5 males.