Chapter 5Congressional Districts
Section § 21400
This section defines the boundaries for each congressional district in California.
Section § 21401
California's Congressional District 01 includes whole counties such as Butte, Glenn, Lassen, Plumas, Sierra, and Tehama. It also covers parts of Lake, Mendocino, and Sonoma counties, specifying certain tracts and census blocks within these counties.
In Lake County, various tracts and specific census blocks are included, such as 0001.00 to 0013.02. Similarly, in Mendocino County, tracts like 0101.00 and 0107.00 are fully included, along with parts of others, specifying blocks within tracts like 0102.00.
Sonoma County also contributes specific tracts and census blocks to the district, such as 1514.04 and 1542.02, with some tracts included in part, noting specific block numbers.
Section § 21402
This law defines the boundaries of California's Congressional District 02. It includes all of Del Norte, Humboldt, Marin, Modoc, Shasta, Siskiyou, and Trinity counties.
It also includes parts of Mendocino and Sonoma counties. Specific census tracts and blocks within these counties are outlined in detail to define the exact district boundary lines.
Section § 21403
This law section details the geographic boundaries of California's Congressional District 03. It specifies which entire counties and partial counties are included in the district. Nevada County is wholly within District 03, while parts of El Dorado, Placer, and Sacramento Counties are also included. The section further breaks down specific census tracts and blocks within these partial counties that form part of the district. This helps define the areas for representation in Congress.
Section § 21404
Congressional District 04 in California is made up of whole and partial parts of several counties. It fully includes the counties of Colusa, Napa, Sutter, and Yuba. The district partially includes parts of Lake, Placer, Sacramento, Sonoma, and Yolo counties, but only specific areas or census blocks within these counties are part of the district.
Section § 21405
This section describes the boundaries of California's Congressional District 05 based on counties and census tracts. The district includes several whole counties, such as Alpine, Amador, Calaveras, Inyo, Mariposa, Mono, and Tuolumne. It also includes parts of other counties, specifically certain census blocks in El Dorado, Fresno, Madera, San Joaquin, and Stanislaus.
The description provides precise census tract and block numbers for federal representation, detailing exactly which areas fall within District 05. This ensures clear district delineations necessary for electoral purposes.
Section § 21406
This law section defines the boundaries of California's Congressional District 06. The district is composed of specified whole and partial census tracts located primarily in Placer, Sacramento, and Yolo counties. For Placer County, certain whole tracts are included, while specific blocks are listed for the partial tracts. Similarly, definite whole tracts and specific blocks from partial tracts in both Sacramento and Yolo counties are part of this district. These delineations help determine representation in Congress for these areas.
Section § 21407
This section defines the boundaries of Congressional District 07 in California. It lists all the whole and partial census tracts from El Dorado, Sacramento, and San Joaquin counties that are included in the district. For each county, specific census tracts and blocks within those tracts are identified, indicating the precise areas encompassed by District 07. This detailed delineation helps in understanding which areas fall under the district for electoral purposes.
Section § 21408
This law section describes the geographic boundaries of California's Congressional District 08. It specifies which whole and partial counties are included in the district. Solano County falls entirely within the district. Parts of Contra Costa, Sacramento, San Joaquin, and Yolo Counties are also included, with detailed lists of census tracts and blocks that make up those partial areas. This helps define who is represented by the elected official in this district.
Section § 21409
This section defines the boundaries of California's Congressional District 09. It details the specific areas within Contra Costa and San Joaquin Counties that are included in the district. The description uses census tracts and blocks to precisely delineate the district's limits. Some tracts are included fully, while others only partially, specifying the exact blocks if only part of a tract is included in the district. This detailed mapping ensures clarity and accuracy in defining which areas are represented in this congressional district.
Section § 21410
Congressional District 10 in California encompasses certain areas within the counties of Alameda and Contra Costa. The district includes specific whole and partial census tracts. In Alameda County, the district is made up of various complete tracts as well as parts of other tracts, identified by census blocks. Similarly, the district covers complete tracts in Contra Costa County but also includes specific sections of other tracts.
Section § 21411
This section defines the geographical boundaries for California's Congressional District 11 in San Francisco County. It lists specific census tracts and blocks that are included in this district. Some of these areas are whole tracts, while others are just specific blocks within those tracts.
Section § 21412
Congressional District 12 includes parts of Alameda County in California. It encompasses several complete census tracts and certain specific blocks within partial tracts. The complete list of all these areas is given through numeric codes.
Section § 21413
This law section specifies the geographic boundaries of California's Congressional District 13. It includes the entire county of Merced and parts of Fresno, Madera, San Joaquin, and Stanislaus counties. Within these counties, the law details which specific census tracts and blocks are fully or partially included in the district.
Essentially, this section maps out the precise areas making up Congressional District 13, which helps determine who votes in this district and where representatives will focus their legislative efforts.
Section § 21414
This law defines the boundaries of California's Congressional District 14. It specifies the exact tracts and partial census blocks within Alameda County included in the district.
The law provides a detailed list of these specific areas to ensure clarity on which parts of Alameda County are part of the district.
Section § 21415
This section of the law defines the geographical boundaries of California's Congressional District 15. It lists specific areas within San Francisco and San Mateo counties that are included in this district. The district is composed of entire census tracts as well as specific census blocks within partial tracts.
In San Francisco, entire census tracts are included, along with parts of other tracts, specified down to the census block level. Similarly, in San Mateo County, the law outlines which entire tracts and which parts of tracts are part of Congressional District 15.
Section § 21416
Congressional District 16 in California includes parts of San Mateo County and Santa Clara County. Certain full census tracts and partial census tracts define the specific portions of these counties within the district. For San Mateo County, the district comprises whole tracts like 6027.00 to 6038.00 and partial tracts listing specific census blocks. Similarly, in Santa Clara County, the district encompasses various whole tracts, such as 5021.01 and 5029.10, alongside partial tracts with specific census blocks.
Section § 21417
This section describes the specific areas included in California's 17th Congressional District. It details which parts of Alameda and Santa Clara counties are part of the district.
For Alameda County, it includes several whole tracts and specific portions of tracts identified by census blocks. Santa Clara County also comprises designated entire tracts and portions of others, marked by detailed census blocks.
Section § 21418
This section defines Congressional District 18 in California by listing its geographical composition. The district includes all of San Benito County and portions of Fresno, Kings, Monterey, Santa Clara, Santa Cruz, and other counties. These portions are further specified by census tracts and blocks, providing a detailed breakdown of the area's boundaries.
Section § 21419
This section of the law defines the specific geographical areas that make up Congressional District 19 in California. The district includes full and partial tracts of land within Monterey, San Luis Obispo, Santa Clara, Santa Cruz, and other counties. Each listed county is broken down into individual census tracts and blocks that specify exactly which areas are included in the district.
For instance, in Monterey County, certain full tracts and specific parts of other tracts are mentioned, providing a precise breakdown of the district's boundaries. Similarly, tracts and blocks are detailed for each of the other counties, outlining which parts are fully or partially included in the district.
Section § 21420
This section defines the specific geographic boundaries of California's Congressional District 20. It includes entire and partial census tracts within Fresno, Kern, Kings, and Tulare counties. Each tract is specified by lists of census block numbers included within the district, which determine where the district's boundaries lie.
Section § 21421
This law section details the specific areas that make up California's 21st Congressional District. It includes exact tracts and smaller census blocks within Fresno and Tulare Counties. Essentially, it defines the geographic boundaries of this electoral district by listing precise regions within these counties, sometimes down to specific census blocks.
Section § 21422
This section outlines the specific areas included in California's Congressional District 22. It provides detailed information about which census tracts and blocks from various counties—Fresno, Kern, Kings, Madera, and Tulare—are part of the district. Some tracts within these counties are entirely included, while others are only partially included, with specific census block numbers delineating the boundaries.
Section § 21423
This statute defines the geographical boundaries of California's Congressional District 23. The district includes parts of Kern, Los Angeles, Riverside, San Bernardino, and other counties. It specifies entire census tracts, as well as partial ones identified by specific census blocks, encompassing various neighborhoods and communities within these counties.
Section § 21424
Congressional District 24 in California includes all of Santa Barbara County.
It also includes parts of San Luis Obispo County and Ventura County. In San Luis Obispo County, specific census tracts and blocks are outlined as part of the district.
Similarly, specific census tracts and blocks in Ventura County are designated as part of District 24. These divisions are used to define the exact boundaries of this congressional district for electoral purposes.
Section § 21425
This section describes the geographical boundaries of Congressional District 25 in California. It includes the entire Imperial County and parts of Riverside and San Bernardino counties. The section lists the specific census tracts and blocks within these counties that are part of the district.
Section § 21426
This law defines the boundaries of California's 26th Congressional District by listing specific whole and partial census tracts within Los Angeles and Ventura counties. Congressional districts are areas from which members of the U.S. House of Representatives are elected. These precincts include entire tracts like 1344.21 and 1372.03 in Los Angeles County and smaller parts of tracts such as sections of 1343.02 and 1351.13. In Ventura County, it includes whole tracts like 0003.02 and 0054.04, and parts of other tracts, such as segments within 0009.01.
Section § 21427
This section of the law outlines which specific areas are included in California's Congressional District 27. It details specific census tracts and blocks within Los Angeles County that are wholly or partially within District 27. Essentially, this statute serves as a geographic definition, specifying the exact boundaries of the district based on census data.
Section § 21428
This law section defines the boundaries of Congressional District 28 in California. The district is made up of specific areas within Los Angeles and San Bernardino Counties. It includes certain census tracts and blocks that are listed in detail. This meticulous breakdown helps determine where Congressional District 28 begins and ends, ensuring clarity in representation.
Section § 21429
This section of the law defines the boundaries of Congressional District 29 in California by listing specific areas within Los Angeles County. It includes entire census tracts and partial census tracts broken down by detailed census block numbers.
Section § 21430
This section defines the boundaries of California's Congressional District 30. It includes specific areas within Los Angeles County, organized by whole tracts and partial tracts with specified census blocks. These designations detail precisely which blocks or tracts fall under the district, ensuring clarity on the legal district boundaries.
Section § 21431
This section outlines the specific areas included in California's Congressional District 31. It details which tracts and census blocks in Los Angeles County and San Bernardino County are part of this district. Whole tracts and partial census blocks are listed for each area to provide clear boundaries of the district.
Section § 21432
This legal section defines the specific areas that make up California's Congressional District 32. It details which parts of Los Angeles and Ventura counties are included in this district, listing entire census tracts or parts of them with precise census block numbers. Essentially, it maps out exactly where this congressional district lies within these counties.
Section § 21433
Congressional District 33 in California includes specific areas within Riverside and San Bernardino counties. In Riverside County, it consists of certain census blocks within several tracts identified by numbers like 0422.06 and 0509.02. Similarly, in San Bernardino County, it includes specific entire tracts as well as selected census blocks within partial tracts. These detailed designations determine the exact geographic boundaries of the district.
Section § 21434
This section specifies which areas in Los Angeles County make up the 34th Congressional District. It lists out the entire census tracts that fall within the district as well as partial census tracts with specific census blocks included. These boundaries define which residents are part of this congressional district for voting and representation purposes.
Section § 21435
Congressional District 35 in California is composed of specific geographic areas within Los Angeles, Riverside, and San Bernardino counties. It includes entire census tracts and specific census blocks from partial tracts in these counties. The text lists the exact tracts and blocks that make up the district boundary.
Section § 21436
This section defines the boundaries of Congressional District 36 in California. Specifically, it lists detailed tracts and census blocks in Los Angeles County that are included in the district.
Essentially, it's a detailed map made of codes that tells which parts of Los Angeles are in the district. This helps ensure that voting representation is based on specific geographic areas.
Section § 21437
This section describes the specific geographic areas that make up California's 37th Congressional District. It details the complete and partial census tracts within Los Angeles County that are included in the district.
Whole tracts are entire areas within certain numbered tracts, while partial tracts list specific census blocks that belong to the district. The focus is on identifying these precise boundaries to clarify which parts of Los Angeles County are in Congressional District 37.
Section § 21438
This section defines the geographical boundaries of California's Congressional District 38. The district includes specific census tracts and census blocks within Los Angeles and Orange Counties. Each county is represented partly or fully in the district through detailed labeling of tracts and blocks.
Los Angeles County contributes both whole and partial tracts, meaning some areas are entirely, while others only partly, included in the district. Orange County follows a similar pattern with specific census blocks outlined.
Section § 21439
This law defines the boundaries of California's 39th Congressional District. The district includes specific areas in Riverside County, listed by census tract and subdivided into census blocks. Each specified tract and block is part of the district, indicating the area residents that will be represented within this Congressional District.
Section § 21440
This section specifies the geographic boundaries of California's 40th Congressional District. The district includes certain full and partial census tracts within Orange and Riverside counties. It lists detailed census block numbers to precisely define which areas are included within the district. This ensures that the district's boundaries are clear and specific for electoral purposes.
Section § 21441
This law defines the specific geographic boundaries of California's 41st Congressional District. The district includes parts of Los Angeles County and Orange County. It lists entire census tracts and specific census blocks within these counties that make up the district.
These boundaries are used for electoral purposes, determining who can vote for representatives in this district.
Section § 21442
This section outlines the specific geographic boundaries of California's Congressional District 42. It details which whole and partial census tracts in Los Angeles County and Orange County are included in the district. The document lists specific tract numbers and census blocks, identifying exactly which areas fall within the district.
Section § 21443
Congressional District 43 in California is made up of certain areas within Los Angeles County. It includes specific whole tracts and certain parts of census tracts in the county. The statute lists the exact tract and block numbers that define the boundaries of this congressional district. These specific designations help to determine which areas and populations are included in District 43 for representation purposes.
Section § 21444
This law defines the geographic area of California's Congressional District 44, specifically outlining the areas within Los Angeles County that are included. It lists entire census tracts and specific census blocks within partial tracts that make up the district.
Section § 21445
Congressional District 45 is made up of certain specific geographical areas within partial counties of Los Angeles and Orange Counties in California. It includes entire census tracts as well as specific census blocks within larger tracts.
In Los Angeles County, the district covers whole census tracts and parts of other tracts identified by their numbers and specific census blocks within them.
Similarly, in Orange County, the district includes entire census tracts as well as specific individual census blocks within other tracts.
Section § 21446
This section outlines the specific geographic areas included in California's Congressional District 46. It details the parts of Orange County that are fully or partially within this district. For fully included areas, it lists entire census tracts. For partial areas, it identifies specific census blocks within those tracts that fall under District 46.
Section § 21447
This section defines the boundaries of California's Congressional District 47 by listing specific census tracts and blocks within Orange County that fall completely or partially within this district.
It identifies whole census tracts entirely within the district, as well as specific census blocks that represent portions of tracts included in the district boundaries.
Section § 21448
The text outlines the specific areas that make up California's Congressional District 48, focusing on tracts and census blocks within Riverside and San Diego Counties. It lists entire residential tracts and precise parts of tracts in these counties that are included in District 48.
Section § 21449
Congressional District 49 in California is made up of specific areas within Orange and San Diego Counties. The law details exactly which tracts and smaller geographic divisions called census blocks are included.
In Orange County, the district includes both whole tracts and specific census blocks within partial tracts. Similarly, San Diego County is partly included by listing entire tracts and specific blocks from other tracts.
Section § 21450
Section § 21451
This section describes the boundaries of Congressional District 51 in California. It specifies which areas of San Diego County are included, citing specific census tracts and blocks that make up the district.
The district includes numerous whole tracts and touches on several partial tracts, detailing the precise census blocks involved. This clarity helps define who is represented in the district during elections.
Section § 21452
This section of the law describes the boundaries of Congressional District 52 in San Diego County. It includes a detailed list of whole census tracts and specific census blocks within partial tracts that make up the district. It's essentially detailing which areas within San Diego County fall under Congressional District 52.
Section § 21453
If there's confusion or disagreement about the location of a boundary line due to census tract or block listings being incorrect or incomplete, the Secretary of State and county election officials should use detailed maps from the Assembly and Senate Committees on Elections to resolve it.
Section § 21454
This law section will only take effect if a specific constitutional amendment, known as Assembly Constitutional Amendment 8 from the 2025–26 session, is approved by voters and becomes active. This amendment would change part of the California Constitution.
Section § 21455
This law will stay in effect until a new map of congressional districts is officially approved by the Citizens Redistricting Commission. Once that happens, this law will no longer be valid.