California's 21st senatorial district

The district encompasses all of Santa Barbara County and parts of San Luis Obispo and Ventura counties, stretching from Grover Beach in the north down along the Highway 101 corridor to include Santa Maria, Buellton, Solvang, Goleta, Santa Barbara, the Santa Clara River Valley, Oxnard, Port Hueneme and Camarillo on the southeastern border. It also includes four of the Channel Islands, though all are uninhabited. 'San Luis Obispo County – 19.93%''''' • Grover Beach • Nipomo • Oceano • Unincorporated areas of San Luis Obispo County – 34.03% 'Santa Barbara County – 100%''''' • Buellton • Carpinteria • Eastern Goleta Valley • Goleta • Guadalupe • Isla Vista • Lompoc • Montecito • Orcutt • Santa Barbara • Santa Maria • Solvang • University of California-Santa Barbara • Vandenberg Village • Unincorporated areas of Santa Barbara County 'Ventura County — 61.78%''''' • Camarillo • El Rio • Fillmore • Mira Monte • Oak View • Ojai • Oxnard • Port Hueneme • San Buenaventura • Santa Paula • Unincorporated areas of Ventura County — 82.34% == Election results from statewide races ==

== List of senators representing the district ==

Due to redistricting, the 21st district has been moved around different parts of the state. The current iteration resulted from the 2021 redistricting by the California Citizens Redistricting Commission. 1852–1862 1862–1875 1875–present == Election results (1990-present) ==

2024 2020 2016 2015 (special) 2012 2008 2004 2000 1996 1992 == See also ==