Temecula is a city in southwestern Riverside County, California, United States which was incorporated on December 1, 1989. Temecula is bordered by the city of Murrieta to the north and the Pechanga Indian Reservation and San Diego County to the south. The City of Temecula forms the southwestern anchor of the Inland Empire region. The city is a tourist destination, with the Temecula Valley Wine Country, Old Town Temecula, the Temecula Valley Polo Club, the Temecula Valley Balloon & Wine Festival, the Temecula Valley International Film Festival, championship golf courses, and resort accommodations for tourists which contribute to the city's economic profile.