This Congressional district was established by the voters of California with the passage of Proposition 50 (2025) on November 4, 2025 and will go into effect after the November 2026 elections and upon seating of the 120th Congress, January 3, 2027. This district will stay in use until the California Citizens Redistricting Commission draws new maps following the 2030 U.S. Census .
DISTRICT CD01
2020 Census Population (adj Elec. §21003 - SWDB 9/27/2021) Name Count Percent Total Population (POP) 760,065 100.00% POP Hispanic or Latino 198,815 26.16% POP Not Hispanic or Latino (NH) 561,250 73.84% POP NH Population of one race 519,629 68.37% POP NH White alone 462,197 60.81% POP NH Black or African American alone 10,617 1.40% POP NH Asian alone 27,489 3.62% POP NH American Indian and Alaska Native alone 12,782 1.68% POP NH Native Hawaiian and Other Pacific Islander alone 2,283 0.30% POP NH Some Other Race alone 4,261 0.56% POP NH Population of two or more races 41,621 5.48% POP DOJ NH Black or African American 15,178 2.00% POP DOJ NH Asian 34,797 4.58% POP DOJ NH American Indian and Alaska Native 28,891 3.80% POP DOJ NH Native Hawaiian and Other Pacific Islander 3,379 0.44% POP DOJ NH Some Other Race 12,303 1.62% POP DOJ NH Balance of Population of two or more races 4,505 0.59%
2020 Census Voting Age Population (adj Elec. §21003 - SWDB 9/27/2021) Name Count Percent Total Voting Age Population (VAP) 600,062 100.00% VAP Hispanic or Latino 135,628 22.60% VAP Not Hispanic or Latino (NH) 464,434 77.40% VAP NH Population of one race 435,698 72.61% VAP NH White alone 390,369 65.05% VAP NH Black or African American alone 8,624 1.44% VAP NH Asian alone 22,046 3.67% VAP NH American Indian and Alaska Native alone 9,559 1.59% VAP NH Native Hawaiian and Other Pacific Islander alone 1,821 0.30% VAP NH Some Other Race alone 3,279 0.55% VAP NH Population of two or more races 28,736 4.79% VAP DOJ NH Black or African American 10,985 1.83% VAP DOJ NH Asian 26,315 4.39% VAP DOJ NH American Indian and Alaska Native 21,821 3.64% VAP DOJ NH Native Hawaiian and Other Pacific Islander 2,548 0.42% VAP DOJ NH Some Other Race 9,565 1.59% VAP DOJ NH Balance of Population of two or more races 2,831 0.47%
2020 Census Housing Occupancy Status Name Count Percent Total Housing Units 328,047 100.00% Occupied 293,226 89.39% Vacant 34,821 10.61%
2020 Census Group Quarters Population (adj Elec. §21003 - SWDB 9/27/2021) Name Count Percent Total Group Quarters Population: 13,168 100.00% Institutionalized population: 5,719 43.43% Correctional facilities for adults 3,034 23.04% Juvenile facilities 253 1.92% Nursing facilities/Skilled-nursing facilities 2,253 17.11% Other institutional facilities 179 1.36% Noninstitutionalized population: 7,449 56.57% College/University student housing 2,311 17.55% Military quarters 0 0.00% Other noninstitutional facilities 5,138 39.02%
2019-2023 ACS Citizen Population (adj Elec. §21003 - SWDB 7/16/2025) Name Count Percent Total Citizen Population (CITZ) 705,218 100.00% CITZ Hispanic or Latino 163,028 23.12% CITZ Not Hispanic or Latino (NH) 542,054 76.86% CITZ NH White alone 469,007 66.51% CITZ NH Black or African American Alone 11,171 1.58% CITZ NH Asian Alone 24,328 3.45% CITZ NH American Indian and Alaska Native Alone 7,907 1.12% CITZ NH Native Hawaiian and Other Pacific Islander alone 1,820 0.26% CITZ NH Black or African American and White 5,452 0.77% CITZ NH American Indian or Alaska Native and White 6,428 0.91% CITZ NH Asian and White 11,544 1.64% CITZ NH American Indian or Alaska Native and Black or African American 239 0.03% CITZ NH Remainder of Two or More Race 4,032 0.57% CITZ DOJ NH Black or African American 16,623 2.36% CITZ DOJ NH Asian 30,756 4.36% CITZ DOJ NH American Indian and Alaska Native 19,451 2.76%
2019-2023 ACS Citizen Voting Age Population (adj Elec. §21003 - SWDB 7/16/2025) Name Count Percent Total Citizen Voting Age Population (CVAP) 548,648 100.00% CVAP Hispanic or Latino 100,965 18.40% CVAP Not Hispanic or Latino (NH) 447,711 81.60% CVAP NH White alone 394,732 71.95% CVAP NH Black or African American Alone 8,650 1.58% CVAP NH Asian Alone 18,330 3.34% CVAP NH American Indian and Alaska Native Alone 6,275 1.14% CVAP NH Native Hawaiian and Other Pacific Islander alone 1,397 0.25% CVAP NH Black or African American and White 2,866 0.52% CVAP NH Asian and White 3,627 0.66% CVAP NH American Indian or Alaska Native and White 8,805 1.60% CVAP NH American Indian or Alaska Native and Black or African American 201 0.04% CVAP NH Remainder of Two or More Race 2,640 0.48% CVAP DOJ NH Black or African American 11,516 2.10% CVAP DOJ NH Asian 21,957 4.00% CVAP DOJ NH American Indian and Alaska Native 15,080 2.75%
Counties In District Name Count Percent Butte 212,548 100.00% Glenn 28,917 100.00% Lake 62,345 91.15% Lassen 25,286 100.00% Mendocino 63,065 68.83% Plumas 19,838 100.00% Sierra 3,245 100.00% Sonoma 278,847 56.94% Tehama 65,971 100.00%
Places In District Name Count Percent BUTTE: Bangor(U) 701 100.00% BUTTE: Berry Creek(U) 1,643 100.00% BUTTE: Biggs(C) 1,971 100.00% BUTTE: Butte Creek Canyon(U) 784 100.00% BUTTE: Butte Meadows(U) 75 100.00% BUTTE: Butte Valley(U) 948 100.00% BUTTE: Cherokee(U) 88 100.00% BUTTE: Chico(C) 101,821 100.00% BUTTE: Clipper Mills(U) 160 100.00% BUTTE: Cohasset(U) 835 100.00% BUTTE: Concow(U) 404 100.00% BUTTE: Durham(U) 5,851 100.00% BUTTE: Forbestown(U) 398 100.00% BUTTE: Forest Ranch(U) 1,307 100.00% BUTTE: Gridley(C) 7,451 100.00% BUTTE: Honcut(U) 310 100.00% BUTTE: Kelly Ridge(U) 3,015 100.00% BUTTE: Magalia(U) 7,828 100.00% BUTTE: Nord(U) 289 100.00% BUTTE: Oroville(C) 20,191 100.00% BUTTE: Oroville East(U) 8,078 100.00% BUTTE: Palermo(U) 5,583 100.00% BUTTE: Paradise(C) 4,816 100.00% BUTTE: Rackerby(U) 212 100.00% BUTTE: Richvale(U) 236 100.00% BUTTE: Robinson Mill(U) 89 100.00% BUTTE: South Oroville(U) 3,261 100.00% BUTTE: Stirling City(U) 286 100.00% BUTTE: Thermalito(U) 7,241 100.00% BUTTE: Yankee Hill(U) 261 100.00% BUTTE: Remainder of Butte(R) 26,415 100.00% GLENN: Artois(U) 296 100.00% GLENN: Elk Creek(U) 141 100.00% GLENN: Hamilton City(U) 2,270 100.00% GLENN: Orland(C) 8,338 100.00% GLENN: Willows(C) 6,309 100.00% GLENN: Remainder of Glenn(R) 11,563 100.00% LAKE: Clearlake(C) 16,817 100.00% LAKE: Clearlake Oaks(U) 2,570 100.00% LAKE: Clearlake Riviera(U) 3,418 100.00% LAKE: Cobb(U) 1,167 90.05% LAKE: Hidden Valley Lake(U) 4,299 68.81% LAKE: Kelseyville(U) 3,391 100.00% LAKE: Lakeport(C) 5,046 100.00% LAKE: Lower Lake(U) 492 38.44% LAKE: Lucerne(U) 3,286 100.00% LAKE: Nice(U) 2,942 100.00% LAKE: North Lakeport(U) 3,558 100.00% LAKE: Soda Bay(U) 1,167 100.00% LAKE: Spring Valley(U) 976 100.00% LAKE: Upper Lake(U) 1,099 100.00% LAKE: Remainder of Lake(R) 12,117 85.37% LASSEN: Bieber(U) 267 100.00% LASSEN: Clear Creek(U) 177 100.00% LASSEN: Doyle(U) 538 100.00% LASSEN: Herlong(U) 239 100.00% LASSEN: Janesville(U) 2,467 100.00% LASSEN: Johnstonville(U) 975 100.00% LASSEN: Litchfield(U) 163 100.00% LASSEN: Little Valley(U) 84 100.00% LASSEN: Madeline(U) 21 100.00% LASSEN: Milford(U) 148 100.00% LASSEN: Nubieber(U) 19 100.00% LASSEN: Patton Village(U) 634 100.00% LASSEN: Spaulding(U) 209 100.00% LASSEN: Stones Landing(U) 86 100.00% LASSEN: Susanville(C) 10,319 100.00% LASSEN: Westwood(U) 1,547 100.00% LASSEN: Remainder of Lassen(R) 7,393 100.00% MENDOCINO: Boonville(U) 1,018 100.00% MENDOCINO: Brooktrails(U) 3,639 100.00% MENDOCINO: Calpella(U) 802 100.00% MENDOCINO: Covelo(U) 1,400 100.00% MENDOCINO: Hopland(U) 662 100.00% MENDOCINO: Philo(U) 320 100.00% MENDOCINO: Potter Valley(U) 665 100.00% MENDOCINO: Redwood Valley(U) 1,846 100.00% MENDOCINO: Talmage(U) 987 100.00% MENDOCINO: Ukiah(C) 16,650 100.00% MENDOCINO: Willits(C) 5,011 100.00% MENDOCINO: Remainder of Mendocino(R) 30,065 64.22% PLUMAS: Almanor(U) 3 100.00% PLUMAS: Beckwourth(U) 478 100.00% PLUMAS: Belden(U) 15 100.00% PLUMAS: Blairsden(U) 38 100.00% PLUMAS: Bucks Lake(U) 22 100.00% PLUMAS: Canyondam(U) 30 100.00% PLUMAS: Caribou(U) 1 100.00% PLUMAS: Chester(U) 2,192 100.00% PLUMAS: Chilcoot-Vinton(U) 446 100.00% PLUMAS: Clio(U) 78 100.00% PLUMAS: Crescent Mills(U) 206 100.00% PLUMAS: C-Road(U) 141 100.00% PLUMAS: Cromberg(U) 273 100.00% PLUMAS: Delleker(U) 803 100.00% PLUMAS: East Quincy(U) 2,471 100.00% PLUMAS: East Shore(U) 181 100.00% PLUMAS: Gold Mountain(U) 73 100.00% PLUMAS: Graeagle(U) 725 100.00% PLUMAS: Greenhorn(U) 247 100.00% PLUMAS: Greenville(U) 1,033 100.00% PLUMAS: Hamilton Branch(U) 506 100.00% PLUMAS: Indian Falls(U) 79 100.00% PLUMAS: Iron Horse(U) 269 100.00% PLUMAS: Johnsville(U) 22 100.00% PLUMAS: Keddie(U) 51 100.00% PLUMAS: Lake Almanor Country Club(U) 451 100.00% PLUMAS: Lake Almanor Peninsula(U) 367 100.00% PLUMAS: Lake Almanor West(U) 211 100.00% PLUMAS: Lake Davis(U) 72 100.00% PLUMAS: La Porte(U) 65 100.00% PLUMAS: Little Grass Valley(U) 25 100.00% PLUMAS: Mabie(U) 181 100.00% PLUMAS: Meadow Valley(U) 455 100.00% PLUMAS: Mohawk Vista(U) 107 100.00% PLUMAS: Plumas Eureka(U) 334 100.00% PLUMAS: Portola(C) 2,113 100.00% PLUMAS: Prattville(U) 24 100.00% PLUMAS: Quincy(U) 1,633 100.00% PLUMAS: Spring Garden(U) 19 100.00% PLUMAS: Taylorsville(U) 123 100.00% PLUMAS: Tobin(U) 19 100.00% PLUMAS: Twain(U) 75 100.00% PLUMAS: Valley Ranch(U) 128 100.00% PLUMAS: Warner Valley(U) 8 100.00% PLUMAS: Whitehawk(U) 144 100.00% PLUMAS: Remainder of Plumas(R) 2,901 100.00% SIERRA: Alleghany(U) 30 100.00% SIERRA: Calpine(U) 225 100.00% SIERRA: Downieville(U) 293 100.00% SIERRA: Goodyears Bar(U) 69 100.00% SIERRA: Loyalton(C) 741 100.00% SIERRA: Pike(U) 160 100.00% SIERRA: Sattley(U) 44 100.00% SIERRA: Sierra Brooks(U) 467 100.00% SIERRA: Sierra City(U) 235 100.00% SIERRA: Sierraville(U) 239 100.00% SIERRA: Verdi(U) 180 100.00% SIERRA: Remainder of Sierra(R) 562 100.00% SONOMA: Cloverdale(C) 9,011 100.00% SONOMA: Forestville(U) 3,268 100.00% SONOMA: Fulton(U) 552 100.00% SONOMA: Geyserville(U) 862 100.00% SONOMA: Graton(U) 1,685 100.00% SONOMA: Healdsburg(C) 11,360 100.00% SONOMA: Larkfield-Wikiup(U) 8,501 100.00% SONOMA: Santa Rosa(C) 178,513 100.00% SONOMA: Sebastopol(C) 7,533 100.00% SONOMA: Windsor(C) 26,378 100.00% SONOMA: Remainder of Sonoma(R) 31,184 37.04% TEHAMA: Bend(U) 606 100.00% TEHAMA: Corning(C) 8,304 100.00% TEHAMA: Dales(U) 28 100.00% TEHAMA: Flournoy(U) 118 100.00% TEHAMA: Gerber(U) 1,056 100.00% TEHAMA: Lake California(U) 3,385 100.00% TEHAMA: Las Flores(U) 190 100.00% TEHAMA: Los Molinos(U) 2,113 100.00% TEHAMA: Manton(U) 311 100.00% TEHAMA: Mineral(U) 136 100.00% TEHAMA: Paskenta(U) 110 100.00% TEHAMA: Paynes Creek(U) 56 100.00% TEHAMA: Proberta(U) 242 100.00% TEHAMA: Rancho Tehama Reserve(U) 1,580 100.00% TEHAMA: Red Bluff(C) 14,839 100.00% TEHAMA: Richfield(U) 309 100.00% TEHAMA: Tehama(C) 439 100.00% TEHAMA: Vina(U) 199 100.00% TEHAMA: Remainder of Tehama(R) 31,950 100.00%
Senate Office of Demographics 02/2026
