Indigenous peoples of California

The Indigenous peoples of California (known as Native Californians) are the indigenous inhabitants who have lived or currently live in the geographic area within the current boundaries of California before and after the arrival of Europeans. With over forty groups seeking to be federally recognized tribes, California has the second largest Native American population. The California cultural area does not exactly conform to the state of California's boundaries. Many tribes on the eastern border with Nevada are classified as Great Basin tribes, and some tribes on the Oregon border are classified as Plateau tribes. Tribes in Baja California who do not cross into California are classified as Indigenous peoples of Mexico.

Before European contact, native Californians spoke over 300 dialects of approximately 100 distinct languages. The large number of languages has been related to the ecological diversity of California, and to a sociopolitical organization into small tribelets (usually 100 individuals or fewer) with a shared "ideology that defined language boundaries as unalterable natural features inherent in the land".

"The majority of California Indian language belong either to highly localized language families with two or three members (e.g. Yukian, Maiduan) or are language isolates (e.g. Karuk, Esselen)." Of the remainder, most are Uto-Aztecan or Athapaskan languages. Larger groupings have been proposed. The Hokan superstock has the greatest time depth and has been most difficult to demonstrate; Penutian is somewhat less controversial.

There is evidence suggestive that speakers of the Chumashan languages and Yukian languages, and possibly languages of southern Baja California such as Waikuri, were in California prior to the arrival of Penutian languages from the north and Uto-Aztecan from the east, perhaps predating even the Hokan languages.Wiyot and Yurok are distantly related to Algonquian languages in a larger grouping called Algic. The several Athapaskan languages are relatively recent arrivals, no more recent than about 2000 years ago.

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