Coles 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 53,196 people, with a population density of about 104.72 persons per square mile.
The county spans a total land area of 508.00 square miles (1,316.00 square kilometers). The administrative center and county seat is Charleston, which often serves as a hub for local governance and services. The largest city within the county by population is Charleston.
Geographically, Coles County experiences varied elevations, with its highest point at Lerna 754 ft and its lowest point at Oakland 656 ft. The region operates in the UTC-6.