Cal. Gov. Code § 23115
The boundaries of Kern County are as follows:
Beginning at the northwest corner, being the common corner of San Luis Obispo, Kings, and Kern; thence east, on the sixth standard south of Mount Diablo base, to the northwest corner of Sec. 1, T. 25 S., R. 40 E., M. D. B. & M., said point being the northeast corner of Kern and the northwest corner of San Bernardino; thence south on the westerly line of San Bernardino to the southeast corner of Sec. 32, T. 9 N., R. 7 W., S. B. B. & M., forming the southeast corner of Kern; thence west along the township line between T. 8 and 9 N. of San Bernardino base to the east line of Sec. 2, T. 8 N., R. 19 W., S. B. B. & M., thence south, along said east line, to the south line of said Sec. 2.; thence west, along said south line, and the south line of Sec. 3, T. 8 N., 19 W., S. B. B. & M. to the east right-of-way line of Interstate 5; thence north, along said right-of-way line to a point on the north line of said Sec. 3; thence west along the township line between T. 8 and 9 N. of San Bernardino base to a point on the north line of Sec. 4, T. 8 N., R. 19 W., S. B. B. & M., said point being the northwest corner of Los Angeles; thence southeasterly along the westerly line of Los Angeles to the southerly line of Sec. 10, T. 8 N., R. 19 W., S. B. B. & M., said point being the corner common to Ventura, Los Angeles, and Kern; thence westerly and northwesterly along the northern boundary of Ventura to the corner common to Santa Barbara, Ventura, and Kern; thence along the northern boundary of Santa Barbara to the corner common to San Luis Obispo, Santa Barbara, and Kern; thence northerly along the eastern boundary of San Luis Obispo to the place of beginning.
Ca. Gov. Code § 23115