Gem County is a county located in the U.S. state of Idaho. As of the most recent data available, the county has a population of approximately 15,181 people, with a population density of about 26.96 persons per square mile.
The county spans a total land area of 563.00 square miles (1,458.00 square kilometers). The administrative center and county seat is Emmett, which often serves as a hub for local governance and services. The largest city within the county by population is Emmett.
Geographically, Gem County experiences varied elevations, with its highest point at Sweet 2,560 ft and its lowest point at Emmett 2,375 ft. The region operates in the UTC-7.