Fillmore is a small valley town in Northern Ventura County just below the San Cayetano Mountain peak in the Los Padres National Forest and within the Santa Clara River Valley. Fillmore is also located within a historic Ventura County agricultural and tree-farming belt. Educational facilities include one high school, one middle school, and 5 elementary schools. Sespe Condor Sanctuary, where the critically endangered California Condor is recovering, lies to the north. The nearby Sespe Creek is a tributary of the Santa Clara River. It is primarily served by State Highways 126 and 23.
The City of Fillmore is an established municipality within Ventura County, founded in 1888 and incorporated on July 10, 1914. The city is governed by a five-person council with the position of mayor and mayor pro-tem elected by the council every two years. Council members serve four-year terms. As of May 2013, the current mayor is Rick Neal, and the council members are Manuel Minjares (Mayor pro-tem), Douglas Tucker, Diane McCall, and Steve Conaway.