Following redistricting in 1992, the 10th district was based in the East Bay, and included parts of Alameda and Contra Costa counties. It received national attention in 1996 when DemocratEllen Tauscher defeated incumbent RepublicanBill Baker in what was considered an upset.[5]
This went into effect in 2012, as the result of redistricting by the California Citizens Redistricting Commission. This version of the 10th included much of the core of the old 18th district (Modesto, Ceres, and the southwestern half of Stanislaus County), though the 18th also included a substantial portion of Stockton. It also shares much of the northwestern portion of the old 19th district (Turlock, Riverbank, Oakdale, and the rest of northeastern Stanislaus County).
Republican Jeff Denham transferred from the prior 19th district to the newer 10th. He held it for three terms until being defeated in 2018 by Democrat Josh Harder, who won reelection in 2020.
The California Secretary of State publishes reports on California voter registration on a regular basis. Before the 2018 primary election, they published a report dating May 21, 2018.
Election results from statewide races
1992 – 2022
Composition
As of the 2020 redistricting, California's 10th congressional district encompasses most of Contra Costa County, and part of Alameda County.
Contra Costa County is split between this district, the 8th district, and the 9th district. The northern border is partitioned by Grizzly Peak Blvd, Seaview Trail, Camino Pablo, Bear Creek Rd, San Pablo Creek, Bear Creek, Brianes Reservoir, Burlington Northern Santa Fe, Highway 4, Alhambra Ave, Pacheco Blvd, Grandview Ave, Central Ave, Imhoff Dr, Bares Ave, Mount Diablo Creek, Union Pacific, Contra Costa Canal, 4WD Rd, Bailey Rd, James Donlon Blvd, Cambridge Dr, Reseda Way, S Royal links Cir, Carpinteria Dr, Barmouth Dr, Hillcrest Ave, Highway 4, and Highway 160. The western border is partitioned by Old River, Italian Slough, Western Farms Ranch Rd, Rankin Rd, Highway J14, Byron Hot Springs Rd, Camino Diablo, Kellogg Creek, Sellers Ave, Brentwood Blvd, Alloro Dr, Ghiggeri Dr, Emilio Dr, Guthrie Ln, Balfour Rd, Chestnut St, Byron Highway, Orwood Rd, Burlington Northern Santa Fe, Werner Dredger Cut, and Rock Slough. The 10th district takes in the south sides of the cities of Antioch and Martinez, the cities of Concord, Brentwood, Oakley, Pleasant Hill, Clayton, Walnut Creek, Lafayette, Orinda, and San Ramon, as well as the towns of Danville and Moraga.
Alameda County is split between this district and the 14th district. They are partitioned by Sinclair Freeway, Amador Valley Blvd, Emerald Ave, Tamarack Dr, Brighton Dr, Ione Way, Newcastle Ln, Dougherty Rd, Highway 580, Lembert Hills Dr. The 10th district takes in San Ramon Village and Komandorski Village.
^Center for New Media & Promotion (CNMP), US Census Bureau. "My Congressional District". www.census.gov.
^"2022 Cook PVI: District Map and List". Cook Political Report. Retrieved January 10, 2023.
^ a b"Maps: Final Congressional Districts". Citizens Redistricting Commission. Archived from the original on March 10, 2013. Retrieved February 24, 2013.
^"CA 2022 Congressional". Dave's Redistricting. January 4, 2022. Retrieved November 11, 2022.
^"Ellen Tauscher is the Grand Dame of CD-10". May 18, 2015. Archived from the original on May 18, 2015.
^"Tauscher accepts State Department post". March 18, 2009.
^"Capitol Alert: Tauscher to take Obama post, opening up House seat". Archived from the original on April 10, 2009. Retrieved June 14, 2009.
^Stannard, Matthew (June 25, 2009). "Rep. Tauscher new U.S. arms control chief". San Francisco Chronicle. Retrieved June 25, 2009.
^"Map Viewer". We Draw the Lines CA. Retrieved January 22, 2022.
^California Secretary of State. Registration by US Congressional District, Report of Registration-May 21, 2018. https://www.sos.ca.gov/elections/report-registration/15day-primary-2018/
^Supplement to the Statement of Vote ca.gov
^Supplement to the Statement of Vote ca.gov
^Supplement to the Statement of Vote ca.gov
^"Supplement to the Statement of Vote - November 3, 1998 General Election Counties by Congressional Districts" (PDF). September 29, 2011. Archived from the original (PDF) on September 29, 2011.
^"Supplement to the Statement of Vote - November 3, 1998 Election Counties by Congressional Districts" (PDF). September 29, 2011. Archived from the original (PDF) on September 29, 2011.
^"Statement of Vote (2000 President)" (PDF). Archived from the original (PDF) on June 11, 2007.
^"Statement of Vote (2000 Senator)" (PDF). Archived from the original (PDF) on June 11, 2007.
^"Statement of Vote (2002 Governor)" (PDF). Archived from the original (PDF) on November 11, 2010.
^"Statement of Vote (2003 Recall Question)" (PDF). Archived from the original (PDF) on May 20, 2011.
^"Statement of Vote (2003 Governor)" (PDF). Archived from the original (PDF) on May 20, 2011.
^"Statement of Vote (2004 President)" (PDF). Archived from the original (PDF) on August 1, 2010.
^"Statement of Vote (2004 Senator)" (PDF). Archived from the original (PDF) on August 10, 2011.
^"Statement of Vote (2006 Governor)" (PDF). Archived from the original (PDF) on August 10, 2011.
^"Statement of Vote (2006 Senator)" (PDF). Archived from the original (PDF) on August 10, 2011.
^"(2008 President)". Archived from the original on February 11, 2009.
^Supplement to the Statement of Vote - Counties by Congressional Districts for United States Senator
^Supplement to the Statement of Vote - Counties by Congressional Districts for Governor
^Supplement to the Statement of Vote - Counties by Congressional Districts for United States Senator
^J. Miles Coleman. "California's 2018 statewide races by congressional district". twitter.com. Retrieved January 6, 2018.
^Supplement to the Statement of Vote - Counties by Congressional Districts for United States Senator
^"Supplement to the Statement of Vote September 14, 2021, California Gubernatorial Recall Election Counties by Congressional Districts for Recall Question" (PDF). Archived (PDF) from the original on March 7, 2022.
^"Counties by Congressional Districts for Recall Election Gubernatorial Replacement Candidates" (PDF).
^"Counties by Congressional Districts for Governor" (PDF). sos.ca.gov. November 8, 2022. Retrieved May 4, 2023.
^"CA District 10 - Special Election". Our Campaigns. Retrieved January 23, 2022.
^"2006 general election results" (PDF). Archived from the original (PDF) on November 27, 2008.
^"2008 general election results" (PDF). Archived from the original (PDF) on December 21, 2008.
^"Official Canvass: United States Representative 10th Congressional District Special General Election, November 3, 2009" (PDF). Secretary of State of California. November 16, 2009. Archived from the original (PDF) on November 19, 2009. Retrieved November 16, 2009.
^"2010 general election results" (PDF). Archived from the original (PDF) on May 20, 2011.
^ a b"2012 general election results" (PDF). Archived from the original (PDF) on October 19, 2013.
^"Election 2020 | California Secretary of State". www.sos.ca.gov.
External links
GovTrack.us: California's 10th congressional district
RAND California Election Returns: District Definitions (out of date)
California Voter Foundation map - CD10 (out of date)