
Iroquois
- County:
- Kingsbury County
- County Seat:
- No
- Area (mi²):
- 0.62
- State:
- South Dakota
Iroquois is a city located in Kingsbury County, South Dakota. Iroquois has a 2025 population of 293. Iroquois is currently declining at a rate of -0.34% annually and its population has decreased by -1.68% since the most recent census, which recorded a population of 298 in 2020.
The average household income in Iroquois is $72,204 with a poverty rate of 1.65%. The median age in Iroquois is 37.3 years: 29.1 years for males, and 40.3 years for females.