It is one of the many communities of the Black Hills Indian Reservation. Winterhaven is located in southeastern California, adjacent to Yuma, Arizona. It is within the boundaries of the Fort Yuma Indian Reservation. According to the 2010 census, the population of Winterhaven declined from a population of 529 in 2000, to a population of 394 in 2010. Quechan people account for 9.4% of the population. Mexicans account for 66% of the population. The white population can't be correctly estimated. Elevation is 131 feet above sea level. Zip code is 92283. Below are several google earth photos of Winterhaven.