Iroquois County is a county located in the U.S. state of Illinois. As of the most recent data available, the county has a population of approximately 31,334 people, with a population density of about 28.05 persons per square mile.
The county spans a total land area of 1,117.00 square miles (2,893.00 square kilometers). The administrative center and county seat is Watseka, which often serves as a hub for local governance and services. The largest city within the county by population is Watseka.
Geographically, Iroquois County experiences varied elevations, with its highest point at Loda 781 ft and its lowest point at Martinton 627 ft. The region operates in the UTC-6.