Hamilton County is a county located in the U.S. state of Ohio. As of the most recent data available, the county has a population of approximately 845,303 people, with a population density of about 76.91 persons per square mile.
The county spans a total land area of 407.00 square miles (1,054.00 square kilometers). The administrative center and county seat is Cincinnati, which often serves as a hub for local governance and services. The largest city within the county by population is Cincinnati.
Geographically, Hamilton County experiences varied elevations, with its highest point at Cheviot 900 ft and its lowest point at Dry Run 0 ft. The region operates in the UTC-5.