Isaiah is a ghost town in Butte County, California, United States.

It was located 5.5 miles (8.9 km) north-northwest of Berry Creek,[2] at an elevation of 984 feet (300 m).

Part of the Bidwell Tract of 1876, It still appeared on maps as of 1948.

Isaiah began as a mining community and later was used as a watering station for steam powered trains.

Because of the construction of Oroville Dam (1961), the railroad was re-directed.