California's 12th senatorial district

California's 12th senatorial district is one of 40 California State Senate districts. It is currently represented by Republican Shannon Grove of Bakersfield.

Since 2022
New district boundaries drawn by the 2020 California Citizens Redistricting Commission went into effect for the 2022 elections. The 12th State Senate district now encompasses the southeastern Central Valley and the northwestern corner of the Mojave Desert; and it includes portions of Fresno County, Kern, and Tulare Counties, including the following cities:
 * California City
 * Clovis
 * Exeter
 * Maricopa
 * Ridgecrest
 * Taft
 * Tehachapi
 * Bakersfield (part)
 * Fresno (part)
 * Shafter (part)
 * Tulare (part)
 * Visalia (part)

The district also includes the Tule River Indian Reservation, Cold Springs Rancheria, Big Sandy Rancheria, and Table Mountain Rancheria.

Tourism, agriculture, and ranching are important in the district. The neighboring districts 14 and 16 were specifically drawn to allow Latino voters to elect state senators of their choice in order to comply with the Voting Rights Act, which affected the western border of District 12.

The district's racial/ethnic demographics (based on the 2020 census) are as follows:

2012-2022
The district included the Salinas Valley and a swath of the Central Valley between Modesto and Fresno. The rural district was primarily agricultural and heavily Latino.

Fresno County – 14.3%
 * Coalinga
 * Firebaugh
 * Fowler
 * Huron
 * Kerman
 * Kingsburg
 * Mendota
 * San Joaquin

Madera County – 81.1%
 * Chowchilla
 * Madera

All of Merced County
 * Atwater
 * Dos Palos
 * Gustine
 * Livingston
 * Los Banos
 * Merced

Monterey County – 54.2%
 * Gonzales
 * Greenfield
 * King City
 * Salinas
 * Soledad

All of San Benito County
 * Hollister
 * San Juan Bautista

Stanislaus County – 27.6%
 * Ceres
 * Newman
 * Modesto – 11.5%
 * Patterson

The district's demographics (based on the 2010 census) were as follows:

As of February 18, 2020, the district had 377,188 registered voters, of whom 45.00% were registered as Democrats, 26.35% were registered as Republicans, and 23.22% were registered with no party preference.

List of senators
Due to redistricting, the 12th district has been moved around different parts of the state. Its current boundaries resulted from the redistricting after the 2020 census by the California Citizens Redistricting Commission and went into effect in 2022.

Election results (1994–present)
1994 · 1998 · 2002 · 2006 · 2010 · 2014 · 2018 · 2022