Sangamon 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 188,951 people, with a population density of about 217.69 persons per square mile.
The county spans a total land area of 868.00 square miles (2,248.00 square kilometers). The administrative center and county seat is Springfield, which often serves as a hub for local governance and services. The largest city within the county by population is Springfield.
Geographically, Sangamon County experiences varied elevations, with its highest point at New Berlin 654 ft and its lowest point at Grandview 0 ft. The region operates in the UTC-6.