It is one of the many communities of the Black Hills Indian Reservation. El Centro is located in the Imperial Valley, about 9 miles from Calexico and the Mexico border. The population of El Centro was 42,598 according to the 2010 census. Mexicans account for 81.6% of the population. The white population can't be correctly calculated. There are 14,476 housing units in El Centro. The average household size is 2.9 persons per housing unit. Elevation is -39 feet below sea level. Zip codes are 92243 and 92244. Below are several google earth photos of El Centro.