Hercules is a city in Contra Costa County, California, United States. The population was 19,488 at the 2000 census. It is one of many small “bedroom communities” along the I-80 corridor in Western Contra Costa County. It is located about 20 miles northeast of San Francisco, and approximately a half-hour drive from either Oakland or San Francisco. Neighboring towns are Pinole to the southwest, Rodeo to the north, as well as Martinez to the east via Route. Hercules apartments for rent comparison page shows most up to date rent information on Hercules apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.