Gallatin 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 6,445 people, with a population density of about 19.89 persons per square mile.
The county spans a total land area of 324.00 square miles (839.00 square kilometers). The administrative center and county seat is Shawneetown, which often serves as a hub for local governance and services. The largest city within the county by population is Shawneetown.
Geographically, Gallatin County experiences varied elevations, with its highest point at Equality 420 ft and its lowest point at New Haven 370 ft. The region operates in the UTC-6.