Delmont is a city located in South Dakota. With a 2020 population of 219, it is the 175th largest city in South Dakota and the 16404th largest city in the United States. Delmont is currently declining at a rate of 0.00% annually and its population has decreased by -6.41% since the most recent census, which recorded a population of 234 in 2010. Delmont reached it's highest population of 233 in 2010. Spanning over 1 miles, Delmont has a population density of 287 people per square mile.
The average household income in Delmont is $54,632 with a poverty rate of 7.85%. The median rental costs in recent years comes to $475 per month, and the median house value is $52,700. The median age in Delmont is 26.7 years, 26.2 years for males, and 33.5 years for females. For every 100 females there are 95.2 males.