Kane 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 404,119 people, with a population density of about 775.66 persons per square mile.
The county spans a total land area of 521.00 square miles (1,349.00 square kilometers). The administrative center and county seat is Geneva, which often serves as a hub for local governance and services. The largest city within the county by population is Aurora.
Geographically, Kane County experiences varied elevations, with its highest point at Lily Lake 962 ft and its lowest point at Sleepy Hollow 0 ft. The region operates in the UTC-6.