Iroquois is a city located in South Dakota. With a 2020 population of 269, it is the 161st largest city in South Dakota and the 15711th largest city in the United States. Iroquois is currently growing at a rate of 1.51% annually and its population has increased by 1.13% since the most recent census, which recorded a population of 266 in 2010. Iroquois reached it's highest population of 272 in 2012. Spanning over 1 miles, Iroquois has a population density of 434 people per square mile.
The average household income in Iroquois is $58,523 with a poverty rate of 8.17%. The median rental costs in recent years comes to $379 per month, and the median house value is $88,100. The median age in Iroquois is 35.5 years, 34.4 years for males, and 37.5 years for females. For every 100 females there are 115.8 males.