1764
Butte County, SD covers 2,266 square miles.
Northern California, Butte County. Approximately 90 miles north of Sacramento
Shasta County, California, USA - 3,847 square miles.
Kern County, CA covers 8,161 square miles.
~49 square miles.
Lake County, California has a total area of approximately 1,329 square miles.
Orange County, California, USA - 948 square miles.
There is no strict definition of "Southern California." But if you want to count LA County, San Diego County, Orange County, Riverside County, San Bernardino County, Ventura County, and Santa Barbara County; then Southern California is about 40,892 square miles. If you add in Kern County, San Luis Obispo County, and Imperial County...then Southern California is about 56,512 square miles.
The biggest county in the United States is San Bernardino County, California, with a land area of 20,057 square miles (51,947 km2).
San Francisco County, with 47 square miles. Next is Santa Cruz County with 446 square miles.
San Bernardino County is the largest county in California, and all of the continental United States. It has 20,105 square miles.
The largest California county by size is San Bernardino County, which is 20,062 square miles.