Due to the presence of Silicon Valley, the district had a median household income of $149,375, the second highest of any congressional district in the country.[1][4] After redistricting, the district picked up agricultural areas of Monterey County, and its median household income dropped substantially, to $90,456.
History
2020 redistricting
Following the 2020 census and the subsequent 2020 United States redistricting cycle, California lost a congressional district, leading to significant changes across California's districts. Most of the area previously part of the 18th district was split into the new 16th district and 19th district. The 18th district was moved to cover the Salinas Valley in Monterey County and the downtown and east side of San Jose. With the changes, the 18th became a Latino majority district.[5]
As of the 2020 redistricting, California's 18th congressional district was shifted geographically to cover the Salinas Valley. It encompasses San Benito, the southernmost point of Santa Cruz County, and the interiors of Santa Clara and Monterey Counties.
Santa Cruz County is split between this district and the 19th district. They are partitioned by Pajaro River, Highway 129, W Beach St, Lee Rd, Highway 1, Harkins Slough Rd, Harkins Slough, Old Adobe Rd, Corralitos Creek, Varin Rd, Pioneer Rd, Green Valley Rd, Casserly Rd, Mt Madonna Rd. The 18th district takes in the city of Watsonville.
Santa Clara County is split between this district, the 19th district, the 16th district, and the 17th district. The 18th, 16th, and 19th are partitioned by Bella Vista Ln, Bodfish Creek, Burchell Rd, Bluebell Dr, Day Rd, Highway G8, W San Martin Ave, Santa Teresa Blvd, Sunnyside Ave, Morgan Hill City Limits, Hale Ave, Tilton Ave, Monterey Rd, Highway 101, Coyote Rd, Anderson Lake, Las Animas Rd, Metcalf Rd, Yerba Buena Creek, Old Yerba Buena Rd, Aborn Rd, Quincy Rd, Norwood Ave, Murillo Ave, Pleasant Acres Dr, Westview Dr, Pleasant Knoll Dr, Guluzzo Dr, Flint Ave, Marten Ave, Coldwater Dr, Ocala Ave, Wonderama Dr, Cunningham Ave, Swift Ave, Highway 101, Story Rd, Monterey Rd, Highway 87, Highway 280, Highway 880. The 18th and 17th are partitioned by Steven's Creek Blvd, Di Salvo Ave, Bellerose Dr, Forest Ave, Wabash Ave, W San Carlos St, Race St, The Alameda, University Ave, Elm St, Highway 82, Newhall St, Morse St, Idaho St, Alameda Ct, Sherwood Ave, Hamline St, Highway 880, Highway 101, McKee Rd, Toyon Ave, Penitencia Creek Rd, Canon Vista Ave, Crothers Rd, Alum Rock Park, Sierra Rd, Felter Rd, Weller Rd. The 18th district takes in the center of the city of San Jose and the San Jose district of Alum Rock. It also takes in the cities of Morgan Hill and Gilroy.
Monterey County is split between this district and the 19th district. They are partitioned by Union Pacific, Highway G12, Elkhorn Rd, Echo Valley Rd, Maher Rd, Maher Ct, La Encina Dr, Crazy Horse Canyon Rd, San Juan Grade Rd, Highway 101, Espinosa Rd, Castroville Blvd, Highway 156, Highway 1, Tembladero Slough, Highway 183, Cooper Rd, Blanco Rd, Salinas River, Davis Rd, Hitchcock Rd, Highway 68, E Blanco Rd, Nutting St, Abbott St, Highway G17, Limekiln Creek, Likekiln Rd, Rana Creek, Tularcitos Creek, Highway G16, Tassajara Rd, Camp Creek, Lost Valley Creek, Lost Valley Conn, N Coast Rdg, 2 Central Coa, Cone Peak Rd, Nacimiento Fergusson Rd, Los Bueyes Creek, and the Monterey County Southern border. The 18th district takes in the cities of Salinas, Soledad, Greenfield, King City, and the north side of the census-designated place Prunedale.
^"2022 Cook PVI: District Map and List". Cook Political Report. Retrieved January 10, 2023.
^"CA 2022 Congressional". Dave's Redistricting. January 4, 2022. Retrieved November 11, 2022.
^DePietro, Andrew. "The Wealthiest Congressional Districts Of 2022". Forbes. Retrieved November 22, 2022.
^"Lofgren Builds Support in New Congressional District that Stretches from San Jose to Salinas". San Jose Inside. January 18, 2022. Retrieved March 17, 2022.
^Supplement to the Statement of Vote Counties by Congressional Districts for President
^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 2014
^Supplement to the Statement of Vote Counties by Congressional Districts for President 2016
^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
^"Daily Kos Elections' presidential results by congressional district for 2020". Daily Kos. Retrieved November 20, 2022.
^"Counties by Congressional District for Recall Question" (PDF). sos.ca.gov. September 14, 2021. Retrieved May 2, 2022.
^"Counties by Congressional Districts for Governor" (PDF). sos.ca.gov. November 8, 2022. Retrieved May 4, 2023.
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^"Statement of Vote (2003 Governor)" (PDF). Archived from the original (PDF) on May 20, 2011. Retrieved October 8, 2007.
^"Statement of Vote (2004 President)" (PDF). Archived from the original (PDF) on May 20, 2011. Retrieved August 8, 2007.
^"Statement of Vote (2004 Senator)" (PDF). Archived from the original (PDF) on August 10, 2011. Retrieved November 20, 2022.
^"Statement of Vote (2006 Governor)" (PDF). Archived from the original (PDF) on August 10, 2011. Retrieved November 20, 2022.
^"Statement of Vote (2006 Senator)" (PDF). Archived from the original (PDF) on August 10, 2011. Retrieved November 20, 2022.
^"(2008 President)". Archived from the original on February 11, 2009. Retrieved March 5, 2009.
^"Statement of Vote (2010 Governor)" (PDF). Archived from the original (PDF) on June 1, 2011. Retrieved July 27, 2011.
^"Statement of Vote (2010 Senator)" (PDF). Archived from the original (PDF) on June 1, 2011. Retrieved July 27, 2011.
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^"1938 election results" (PDF). Retrieved November 20, 2022.
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^1942 election results
^1944 election results
^1946 election results
^1948 election results
^1950 election results
^1952 election results
^"1954 election results" (PDF). Retrieved November 20, 2022.
^1956 election results
^1958 election results
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^1968 election results
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^1992 election results
^1994 election results
^1996 election results
^1998 election results
^2000 election results
^2002 general election results Archived February 3, 2009, at the Wayback Machine
^2004 general election results Archived August 21, 2008, at the Wayback Machine
^2006 general election results Archived November 27, 2008, at the Wayback Machine
^2008 general election results Archived December 21, 2008, at the Wayback Machine