Hancock County is a county located in the U.S. state of Mississippi. As of the most recent data available, the county has a population of approximately 42,967 people, with a population density of about 90.08 persons per square mile.
The county spans a total land area of 477.00 square miles (1,235.00 square kilometers). The administrative center and county seat is , which often serves as a hub for local governance and services. The largest city within the county by population is Bay St. Louis.
Geographically, Hancock County experiences varied elevations, with its highest point at Diamondhead 50 ft and its lowest point at Pearlington 8 ft. The region operates in the UTC-6.