Will 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 502,266 people, with a population density of about 600.08 persons per square mile.
The county spans a total land area of 837.00 square miles (2,168.00 square kilometers). The administrative center and county seat is Joliet, which often serves as a hub for local governance and services. The largest city within the county by population is Joliet.
Geographically, Will County experiences varied elevations, with its highest point at Monee 800 ft and its lowest point at Crest Hill 0 ft. The region operates in the UTC-6.