Senate District 19 includes the Northwest corner of Los Angeles County including the cities of Stevenson Ranch and Santa Clarita. The Ventura County portion of the 19th Senate District includes the cities of Thousand Oaks, Simi Valley, Moorpark, Camarillo, Ventura and Ojai.

Legislative reapportionment has added Santa Barbara County to the 19th Senate District, including the cities of Santa Barbara, Lompoc, Carpinteria, Buellton, Solvang, and Vandenberg Air Force Base. To view legislative reapportionment maps and community data, please click here:
Maps and Community Data - Zip Code Directory.