South Pasadena is a city in Los Angeles County, California, United States. As of the 2010 census, it had a population of 25,619, up from 24,292 at the 2000 census. It is located in the West San Gabriel Valley. It is 3.42 square miles in area and lies between the much larger city of Pasadena, of which it was once a part, and the metropolis of Los Angeles. South Pasadena is the oldest self-builder of floats in the historic Tournament of Roses Parade.
The original inhabitants of South Pasadena and surrounding areas were members of the Native American Hahamog-na tribe, a branch of the Tongva Nation (part of the Shoshone language group) that occupied the Los Angeles Basin. The Tongva name for the area that covers modern-day South Pasadena and part of Pasadena was Akuvranga. Tongva dwellings lined the Arroyo Seco (Los Angeles County) in South Pasadena and south to where it joins the Los Angeles River and along other natural waterways in the city. They lived in thatched, dome-shape lodges characteristic for their use of carved wood decorations. For food, they lived on a diet of corn meal, acorns, seeds and herbs, fish, venison, berries, fruits and other small animals. They traded for ocean fish with the coastal Tongva on a daily basis.