Sonoma is a city in Sonoma Valley, Sonoma County, California, United States, surrounding its historic town plaza, a remnant of the town's Mexican colonial past. Today, Sonoma is a center of the state's wine industry for the Sonoma Valley AVA Appellation, as well as the home of the Sonoma International Film Festival. Sonoma's population was 10,648 as of the 2010 census, while the Sonoma urban area had a population of 32,678.HistoryOriginsThe area around what is now the City of Sonoma, California was not empty when the first Europeans arrived. It is near the northeast corner of the territory claimed by the Coast Miwok, with Southern Pomo to the northwest, Wappo to the northeast, Suisunes and Patwin peoples to the east.<ref name="S/PSHPA">S/PSHPAMission PeriodMission San Francisco Solano was the predecessor of the Pueblo of Sonoma. The Mission, established in 1823 by Father José Altimira of the Franciscan Order was the 21st, last and northernmost mission built in Alta California. It was the only mission built in Alta California after Mexico gained independence from the Spanish Empire. In 1833 the Mexican Congress decided to close all of the missions in Alta California. The Spanish missionaries were to be replaced by parish priests. The commander of the Company of the National Presidio at San Francisco (Compania de Presidio Nacional de San Francisco), Lieutenant Mariano Guadalupe Vallejo was appointed administrator (comisionado) to oversee the closing of Mission San Francisco Solano. Governor José Figueroa's naming of Lieutenant Vallejo as the administrator to secularize the Mission was part of a larger plan.