What is the land size of Redwood Valley Rancheria, California? The land size of Redwood Valley Rancheria, California is 0.42 square miles Related posts: How many people in Redwood Valley Rancheria, California identify as being two races – White; American Indian and Alaska Native? How many people in Redwood Valley Rancheria, California identify as being two races – Asian; Native Hawaiian and Other Pacific Islander? How many people in Redwood Valley Rancheria, California identify as being three races – American Indian and Alaska Native; Asian; Some Other Race? About Redwood Valley Rancheria, California