Iroquois is a city on the border of Beadle and Kingsbury counties in South Dakota, United States.

[6] The school building (kindergarten - twelfth grade) is located in Kingsbury County, while the school parking lot is located in Beadle County.

[9] According to the United States Census Bureau, the city has a total area of 0.62 square miles (1.61 km2), all land.

There were 135 housing units at an average density of 217.7 per square mile (84.1/km2).

32.8% of all households were made up of individuals, and 13.5% had someone living alone who was 65 years of age or older.

31.0% of all households were made up of individuals, and 11.5% had someone living alone who was 65 years of age or older.

About 18.8% of families and 17.4% of the population were below the poverty line, including 24.7% of those under the age of eighteen and 9.8% of those 65 or over.