California's 48th State Assembly district

California's 48th State Assembly district
California's 48th State Assembly district
Current assemblymember
	Blanca Rubio ; D–Baldwin Park
Population (2010); • Voting age; • Citizen voting age	461,346; 337,378; 255,184
Demographics	19.40% White ; 2.66% Black ; 64.04% Latino ; 12.86% Asian ; 0.35% Native American ; 0.14% Hawaiian/Pacific Islander ; 0.20% other; 0.36% remainder of multiracial;
Registered voters	222,223
Registration	47.25% Democratic ; 22.97% Republican ; 24.85% No party preference

Last updated September 15, 2025

California's 48th State Assembly district is one of 80 California State Assembly districts. It is currently represented by Democrat Blanca Rubio of Baldwin Park.

District profile

The district encompasses the eastern San Gabriel Valley, along with several foothill communities. The district is primarily suburban and heavily Latino.

Los Angeles County – 4.7%

Election results from statewide races

Year	Office	Results
2020	President	Biden 63.7 - 32.7%
2018	Governor	Newsom 64.8 – 35.2%
2018	Senator	Feinstein 51.6 – 48.4%
2016	President	Clinton 65.6 – 28.5%
2016	Senator	Harris 51.9 – 48.1%
2014	Governor	Brown 58.0 – 42.0%
2012	President	Obama 64.1 – 33.4%
2012	Senator	Feinstein 65.3 – 34.7%

List of assembly members

Due to redistricting, the 48th district has been moved around different parts of the state. The current iteration resulted from the 2011 redistricting by the California Citizens Redistricting Commission.

Assembly members	Party	Years served	Counties represented	Notes
Frank French	Republican	January 5, 1885 - January 3, 1887	San Francisco
Joseph Windrow		January 3, 1887 - January 7, 1889
Thomas C. Maher		January 7, 1889 - January 5, 1891
Joseph Windrow		January 5, 1891 - January 2, 1893
J. J. McElroy	Democratic	January 2, 1893 - January 7, 1895	Alameda
Robert Gay	Republican	January 7, 1895 - January 4, 1897
Frank W. Leavitt		January 4, 1897 - January 2, 1899
Joseph McDonald Kelley		January 2, 1899 - January 5, 1903
Philip M. Walsh		January 5, 1903 - January 4, 1909
James T. Feeley		January 4, 1909 - January 2, 1911
Robert J. Callaghan		January 2, 1911 - January 6, 1913
John K. Alexander	Democratic	January 6, 1913 - January 4, 1915	Monterey, San Benito
Arthur Elliott Boyce	Republican	January 4, 1915 - January 8, 1917
William Jefferson Martin		January 8, 1917 - January 3, 1921
Daniel McCloskey		January 3, 1921 - January 8, 1923
C. C. Baker		January 8, 1923 - January 5, 1925
Fredrick Eugene Dayton		January 5, 1925 - January 3, 1927
Ellis Walton Hedges Jr.		January 3, 1927 - January 7, 1929
Ray C. De Yoe		January 7, 1929 - January 5, 1931
Robert Lincoln Patterson		January 5, 1931 - January 2, 1933	Kern
Frank G. Martin		January 2, 1933 - October 9, 1937	Los Angeles	Died in office during his 3rd term.
T. Fenton Knight		January 2, 1939 - January 3, 1949
Bruce V. Reagan		January 3, 1949 - January 8, 1951
Frank D. Lanterman		January 8, 1951 - January 7, 1963
George E. Danielson	Democratic	January 7, 1963 - January 2, 1967
David Roberti	Democratic	January 2, 1967 - July 29, 1971		Resigned from office to be sworn in to the 27th Senate district after winning the special election.^[2]
Bill Brophy	Republican	November 19, 1971 - November 30, 1972		Sworn in after winning special election to fill the vacant left by Roberti.^[3]
Richard Alatorre	Democratic	January 8, 1973 - November 30, 1974
Leon D. Ralph		December 2, 1974 – November 30, 1976
Maxine Waters		December 6, 1976 – November 30, 1990
Marguerite Archie-Hudson		December 3, 1990 – November 30, 1996
Roderick Wright		December 2, 1996 – November 30, 2002
Mark Ridley-Thomas		December 2, 2002 – November 30, 2006
Mike Davis		December 4, 2006 – November 30, 2012
Roger Hernández		December 3, 2012 - November 30, 2016
Blanca Rubio		December 5, 2016 – present

Election results (1992–present)

2020

2020 California State Assembly election
Primary election
Party		Candidate	Votes	%
	Democratic	Blanca Rubio (incumbent)	58,432	100.0%
Total votes			58,432	100.0%
General election
	Democratic	Blanca Rubio (incumbent)	126,430	100.0%
Total votes			126,430	100.0%
	Democratic hold

2018

California State Assembly election, 2018
Primary election
Party		Candidate	Votes	%
	Democratic	Blanca Rubio (incumbent)	33,144	100.0
Total votes			33,144	100.0
General election
	Democratic	Blanca Rubio (incumbent)	90,105	100.0
Total votes			90,105	100.0
	Democratic hold

2016

California State Assembly election, 2016
Primary election
Party		Candidate	Votes	%
	Republican	Cory Ellenson	18,547	26.4
	Democratic	Blanca Rubio	17,941	25.5
	Democratic	Bryan Urias	16,178	23.0
	Democratic	Manuel Lozano	11,510	16.4
	Democratic	Armando Barajas	6,129	8.7
Total votes			70,305	100.0
General election
	Democratic	Blanca Rubio	87,321	64.1
	Republican	Cory Ellenson	48,922	35.9
Total votes			136,243	100.0
	Democratic hold

2014

California State Assembly election, 2014
Primary election
Party		Candidate	Votes	%
	Democratic	Roger Hernandez (incumbent)	13,254	48.5
	Republican	Joe Gardner	11,187	40.9
	No party preference	Mike Meza	2,878	10.5
Total votes			27,319	100.0
General election
	Democratic	Roger Hernandez (incumbent)	30,131	54.4
	Republican	Joe Gardner	25,284	45.6
Total votes			55,415	100.0
	Democratic hold

2012

California State Assembly election, 2012
Primary election
Party		Candidate	Votes	%
	Republican	Joe M. Gardner	15,344	45.6
	Democratic	Roger Hernandez (incumbent)	14,625	43.4
	No party preference	Mike Meza	3,698	11.0
Total votes			33,667	100.0
General election
	Democratic	Roger Hernandez (incumbent)	74,642	59.4
	Republican	Joe M. Gardner	50,927	40.6
Total votes			125,569	100.0
	Democratic hold

2010

2010 California State Assembly election
Party		Candidate	Votes	%
	Democratic	Mike Davis (incumbent)	50,825	100.0
Total votes			50,825	100.0
	Democratic hold

2008

2008 California State Assembly election
Party		Candidate	Votes	%
	Democratic	Mike Davis (incumbent)	75,279	87.08
	Peace and Freedom	Lucilla Esguerra	11,173	12.92
Total votes			86,452	100.00
Turnout				59.41
	Democratic hold

2006

2006 California State Assembly election
Party		Candidate	Votes	%
	Democratic	Mike Davis	43,310	88.77
	Republican	Brenda Green	5,479	11.23
Total votes			48,789	100.00
Turnout				39.24
	Democratic hold

2004

2004 California State Assembly election
Party		Candidate	Votes	%
	Democratic	Mark Ridley-Thomas (incumbent)	68,289	89.12
	Republican	Sebastian Alexander	8,333	10.88
Total votes			76,622	100.00
	Democratic hold

2002

2002 California State Assembly election
Party		Candidate	Votes	%
	Democratic	Mark Ridley-Thomas	40,890	87.59
	Republican	Gerard Toussaint Robinson	4,389	9.40
	Libertarian	Nolayan O. Herdegen	1,407	3.01
Invalid or blank votes			4,386	8.59
Total votes			51,072	100.00
	Democratic hold

2000

2000 California State Assembly election
Party		Candidate	Votes	%
	Democratic	Roderick "Rod" Wright	56,030	94.29
	Republican	Ernest Woods	3,394	5.71
Invalid or blank votes			6,671	10.09
Total votes			66,095	100.00
	Democratic hold

1998

1998 California State Assembly election
Party		Candidate	Votes	%
	Democratic	Roderick "Rod" Wright (incumbent)	43,736	94.69
	Republican	Ernest Woods	2,455	5.31
Invalid or blank votes			4,937	9.66
Total votes			51,128	100.00
	Democratic hold

1996

1996 California State Assembly election
Party		Candidate	Votes	%
	Democratic	Roderick "Rod" Wright	46,134	100.00
Invalid or blank votes			15,142	24.71
Total votes			61,276	100.00
	Democratic hold

1994

1994 California State Assembly election
Party		Candidate	Votes	%
	Democratic	Marguerite Archie-Hudson (inc.)	35,150	100.00
Invalid or blank votes			13,465	27.7
Total votes			48,615	100.00
	Democratic hold

1992

1992 California State Assembly election
Party		Candidate	Votes	%
	Democratic	Marguerite Archie-Hudson (inc.)	55,719	93.05
	Republican	Jonathan Leonard	4,159	6.95
Invalid or blank votes			11,514	16.13
Total votes			71,392	100.00
	Democratic hold

References

1 2 3 4 "Citizens Redistricting Commission Final Report, 2011" (PDF).
↑ "David Roberti Resignation letter" (PDF). clerk.assembly.ca.gov.
↑ "Bill Brophy Sworn in" (PDF). clerk.assembly.ca.gov.

External links

District map from the California Citizens Redistricting Commission

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[population-1] 1 2 3 4 "Citizens Redistricting Commission Final Report, 2011" (PDF).

[2] "David Roberti Resignation letter" (PDF). clerk.assembly.ca.gov.

[3] "Bill Brophy Sworn in" (PDF). clerk.assembly.ca.gov.

[1]

[2]

[3]

v t e California State Legislature districts
Senate	1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Assembly	1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

v t e State of California
Sacramento (capital)
Topics	Culture food music languages California sound sports California Dream Crime Demographics Earthquakes Economy agriculture Education Education, history of Environment Geography climate ecology flora fauna Government Capitol districts governor legislature Supreme Court Healthcare Abortion History Law LGBT rights National Historic Landmarks National Natural Landmarks NRHP listings Politics congressional delegations elections People Protected areas state parks state historic landmarks Symbols Transportation Water Index of articles
Regions	Antelope Valley Big Sur California Coast Ranges Cascade Range Central California Central Coast Central Valley Channel Islands Coachella Valley Coastal California Conejo Valley Cucamonga Valley Death Valley East Bay (SF Bay Area) East County (SD) Eastern California Emerald Triangle Gold Country Great Basin Greater San Bernardino Inland Empire Klamath Basin Lake Tahoe Greater Los Angeles Los Angeles Basin Lost Coast Mojave Desert Mountain Empire North Bay (SF) North Coast North County (SD) Northern California Orange Coast Owens Valley Oxnard Plain Peninsular Ranges Pomona Valley Sacramento–San Joaquin River Delta Sacramento Valley Saddleback Valley Salinas Valley San Fernando Valley San Francisco Bay Area San Francisco Peninsula San Gabriel Valley San Joaquin Valley Santa Clara Valley Santa Clara River Valley Santa Clarita Valley Santa Ynez Valley Shasta Cascade Sierra Nevada Silicon Valley South Bay (LA) South Bay (SD) South Bay (SF) South Coast Southern Border Region Southern California Transverse Ranges Tri-Valley Victor Valley Wine Country
Metro regions	Fresno–Madera Los Angeles-Long Beach-Anaheim Sacramento–Roseville Riverside–San Bernardino–Ontario San Diego–Tijuana San Jose–San Francisco–Oakland
Counties	Alameda Alpine Amador Butte Calaveras Colusa Contra Costa Del Norte El Dorado Fresno Glenn Humboldt Imperial Inyo Kern Kings Lake Lassen Los Angeles Madera Marin Mariposa Mendocino Merced Modoc Mono Monterey Napa Nevada Orange Placer Plumas Riverside Sacramento San Benito San Bernardino San Diego San Francisco San Joaquin San Luis Obispo San Mateo Santa Barbara Santa Clara Santa Cruz Shasta Sierra Siskiyou Solano Sonoma Stanislaus Sutter Tehama Trinity Tulare Tuolumne Ventura Yolo Yuba
Most populous cities	Los Angeles San Diego San Jose San Francisco Fresno Sacramento Long Beach Oakland Bakersfield Anaheim
Californiaportal