Centennial, California is a proposed 12,323-acre (49.87 km2) master-planned community on Tejon Ranch in northwestern Los Angeles County between Bakersfield and Los Angeles.[1][2] It is situated in the far western Antelope Valley at the foothills of the Sierra Pelona and Tehachapi Mountains.[3] It would be built along California State Route 138 east of Interstate 5 and northeast of Quail Lake.[1]