Knox 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 55,836 people, with a population density of about 77.98 persons per square mile.
The county spans a total land area of 716.00 square miles (1,854.00 square kilometers). The administrative center and county seat is Galesburg, which often serves as a hub for local governance and services. The largest city within the county by population is Galesburg.
Geographically, Knox County experiences varied elevations, with its highest point at Victoria 834 ft and its lowest point at Henderson 0 ft. The region operates in the UTC-6.