Sierra Madre is a city in Los Angeles County, California whose population was 10,917 at the 2010 U.S. Census, up from 10,580 at the time of the 2000 U.S. Census. The city is in the foothills of the San Gabriel Valley below the southern edge of the Angeles National Forest. Pasadena and Altadena are to its west, with Arcadia to its south and east. Sierra Madre is known as "Wisteria City", and its city seal is decorated with a drawing of the now widely known 500-foot (150 m) vine. It is also called the "Village of the Foothills" and was an All-America City in 2007.
In approximately 500 CE, Tongva Indians, the native people migrated from the Mojave area to what would become Los Angeles County, (including the San Gabriel Valley). Their name means "People of the Earth". Their primary language was Uto-Aztecan Shoshonean. In the 16th century there were about 25 Tongva villages, with a population of approximately 400 people. By 1769, the first Spanish settlers arrived in the region, finding an estimated 5,000 Tongva living in 31 villages. Sierra Madre was the site of a settlement named Sonayna.