Oakley is a city in Contra Costa County, California. Oakley’s west border is Highway 160, which provide access to
Oakland, San Francisco, San Jose, Sacramento, and the Central Valley. The City of Antioch adjoins Oakley on the west.
The city of Brentwood adjoins Oakley on the south. Bethel Island lies to the east. The Sacramento-San Joaquin Delta forms
the northern boundary. The southwestern skyline is dominated by Mt. Diablo. This isolated 3,849 feet peak is visible from
most of the San Francisco Bay Area and much of northern California.