The Yuki of United States, numbering approximately 1,200 people, are Unengaged and Unreached. They are an Indigenous people of Northern California whose ancestral homelands center on Round Valley and the upper Eel River. Today, Yuki descendants survive primarily through the Round Valley Indian Tribes, preserving cultural identity and memory. and can also be known as Round Valley Indians, Yukiah, Ukomno'om, Huchnom, Ukohtontilka. They are an Indigenous people, in the North American Indigenous people cluster of the North American Peoples affinity bloc. Their primary religion is Native American religions. They primarily speak English.