Big Horn County is a county located in the U.S. state of Montana. As of the most recent data available, the county has a population of approximately 12,671 people, with a population density of about 2.54 persons per square mile.
The county spans a total land area of 4,995.00 square miles (12,937.00 square kilometers). The administrative center and county seat is Hardin, which often serves as a hub for local governance and services. The largest city within the county by population is Hardin.
Geographically, Big Horn County experiences varied elevations, with its highest point at Pryor 4,067 ft and its lowest point at Hardin 2,902 ft. The region operates in the UTC-7.