California's 9th senatorial district

California's 9th State Senate district
California's 9th State Senate district
Current senator
	Tim Grayson ; D–Concord
Population (2010); • Voting age; • Citizen voting age	940,601; 743,998; 595,108
Demographics	31.82% White ; 19.81% Black ; 23.94% Latino ; 21.62% Asian ; 0.55% Native American ; 0.53% Hawaiian/Pacific Islander ; 0.45% other; 1.28% remainder of multiracial;
Registered voters	575,696
Registration	66.05% Democratic ; 5.96% Republican ; 23.78% No party preference

Last updated March 10, 2025

California's 9th senatorial district is one of 40 California State Senate districts. It is currently represented by Democrat Tim Grayson of Concord.

District profile

2020s

The district encompasses most of Contra Costa County, including Concord, Antioch, Pittsburg, Bay Point, Martinez, Pleasant Hill, Walnut Creek, Lafayette, Danville, San Ramon, and Orinda; along with Castro Valley, San Lorenzo, and San Leandro in Alameda County.

2010s

It previously encompassed the East Bay and consists of the urban, coastal northwestern portion of Alameda County, and western portion of Contra Costa County, including Alameda, Oakland, Piedmont, Emeryville, Berkeley, El Cerrito, and Richmond; currently represented by the 7th district.

Election results from statewide races

Year	Office	Results
2021	Recall	No 89.6 – 10.4%
2020	President	Biden 87.8 – 10.2%
2018	Governor	Newsom 88.9 – 11.1%
2018	Senator	Feinstein 59.8 – 40.2%
2016	President	Clinton 85.6 – 7.8%
2016	Senator	Harris 79.1 – 20.9%
2014	Governor	Brown 90.2 – 9.8%
2012	President	Obama 86.8 – 9.9%
2012	Senator	Feinstein 90.0 – 10.0%
2010	Governor	Brown 79.9 – 16.5%
2010	Senator	Boxer 79.5 – 16.7%
2008	President	Obama 84.0 – 14.1%
2006	Governor	Angelides 62.1 – 29.8%
2006	Senator	Feinstein 67.6 – 28.0%
2004	President	Kerry 81.1 – 17.5%
2004	Senator	Boxer 80.1 – 15.6%
2003	Recall	No 77.0 – 23.0%
2003	Recall	Bustamante 60.7 – 19.4%
2002	Governor	Davis 65.0 – 16.8%
2000	President	Gore 78.9 – 12.6%
2000	Senator	Feinstein 74.0 – 12.6%
1998	Governor	Davis 83.3 – 12.4%
1998	Senator	Boxer 80.9 – 16.6%
1996	President	Clinton 75.5 – 13.0%
1994	Governor	Brown 74.0 – 22.9%
1994	Senator	Feinstein 80.2 – 14.0%
1992	President	Clinton 77.3 – 12.5%
	Senator	Boxer 79.4 – 15.2%
	Senator	Feinstein 82.4 – 13.4%

List of senators

Due to redistricting, the 9th district has been moved around different parts of the state. The current iteration resulted from the 2021 redistricting by the California Citizens Redistricting Commission.

Senators	Party	Years served	Counties represented	Notes
John J. Harrigan	Democratic	January 8, 1883 - January 5, 1885	San Francisco	Both Harrigan and McCarthy served together.^[3]
Timothy McCarthy	Democratic	January 8, 1883 - January 5, 1885		Both Harrigan and McCarthy served together.^[3]
Egisto C. Palmieri	Republican	January 5, 1885 - January 3, 1887		Both Palmieri and Parkinson served together.^[4]
George C. Parkinson	Republican	January 5, 1885 - January 3, 1887		Both Palmieri and Parkinson served together.^[4]
Henry Clay Gesford	Democratic	January 3, 1887 - January 7, 1889	Napa, Yolo
Frank S. Sprague	Republican	January 7, 1889 - January 2, 1893	Napa, Yolo
J. B. Hoyt		January 2, 1893 - January 4, 1897	Solano
John J. Luchsinger		January 4, 1897 - January 2, 1905	Solano
Charles Mortimer Belshaw		January 2, 1905 - January 4, 1909	Contra Costa, Marin
Ennio Batista Martinelli		January 4, 1909 - January 6, 1913
James Curtis Owens	Democratic	January 6, 1913 - January 8, 1917
William R. Sharkey	Republican	January 8, 1917 - January 2, 1933
Andrew L. Pierovich	Democratic	January 2, 1933 - January 6, 1941	Alpine, Amador, El Dorado
Harley E. Dillinger	Democratic	January 6, 1941 - January 5, 1953	Alpine, Amador, El Dorado
Swift Berry	Republican	January 5, 1953 - January 2, 1961	Amador, El Dorado
John C. Begovich	Democratic	January 2, 1961 - January 2, 1967	Amador, El Dorado
J. Eugene McAteer	Democratic	January 2, 1967 - May 26, 1967	San Francisco	Died in office. Died from a heart attack while playing handball at the Olympic Club.^[5]
Milton Marks	Republican	September 4, 1967 - November 30, 1976	San Francisco	Sworn in after winning special election.^[6]
Nicholas C. Petris	Democratic	December 6, 1976 - November 30, 1996	Alameda
Nicholas C. Petris		December 6, 1976 - November 30, 1996	Alameda, Contra Costa
Barbara Lee		December 2, 1996 - April 17, 1998		Resigned to become a member of Congress for the 9th Congressional district.^[7]
Don Perata		December 7, 1998 – November 30, 2008
Loni Hancock		December 1, 2008 – November 30, 2016
Nancy Skinner		December 5, 2016 – November 30, 2024		Elected in 2016. Re-elected in 2020 Term-limited and redistricted to the 7th district in 2024.
Tim Grayson		December 5, 2024 – present		Elected in 2024.

Election results

2020

California State Senate election, 2020
Primary election
Party		Candidate	Votes	%
	Democratic	Nancy Skinner (incumbent)	263,751	100.0
	Libertarian	Jamie Dluzak (write-in)	126	0.0
Total votes			263,877	100.0
General election
	Democratic	Nancy Skinner	404,455	84.4
	Libertarian	Jamie Dluzak	53,256	11.6
Total votes			457,711	100.0
	Democratic hold

2016

California State Senate election, 2016
Primary election
Party		Candidate	Votes	%
	Democratic	Nancy Skinner	116,710	47.8
	Democratic	Sandré Swanson	74,365	30.5
	Democratic	Katherine Grace Welch	32,698	13.4
	Republican	Rich Kinney	20,287	8.3
Total votes			244,060	100.0
General election
	Democratic	Nancy Skinner	236,133	62.2
	Democratic	Sandré Swanson	143,573	37.8
Total votes			379,706	100.0
	Democratic hold

2012

California State Senate election, 2012
Primary election
Party		Candidate	Votes	%
	Democratic	Loni Hancock (incumbent)	123,624	99.3
	Peace and Freedom	Mary Catherine McIlroy (write-in)	785	0.6
	Libertarian	Lisa D. Ringer (write-in)	95	0.1
Total votes			124,504	100.0
General election
	Democratic	Loni Hancock (incumbent)	300,994	85.8
	Peace and Freedom	Mary Catherine McIlroy	49,987	14.2
Total votes			350,981	100.0
	Democratic hold

2008

California State Senate election, 2008
Party		Candidate	Votes	%
	Democratic	Loni Hancock	272,225	77.2
	Republican	Claudia Bermudez	53,299	15.1
	Peace and Freedom	Marsha Feinland	26,996	7.7
Total votes			352,520	100.00
	Democratic hold

2004

California State Senate election, 2004
Party		Candidate	Votes	%
	Democratic	Don Perata (incumbent)	248,614	77.1
	Republican	Patricia Deutsche	50,110	15.6
	Peace and Freedom	Tom Condit	17,412	5.4
	Libertarian	Peter Von Pinnon	6,383	1.9
Total votes			322,519	100.0
	Democratic hold

2000

California State Senate election, 2000
Party		Candidate	Votes	%
	Democratic	Don Perata (incumbent)	218,550	83.4
	Republican	Linda J. Marshall	30,062	11.5
	Libertarian	Peter Von Pinnon	13,622	5.1
Total votes			262,234	100.0
	Democratic hold

1998 (special)

California's 9th State Senate district special election, 1998
Vacancy resulting from the resignation of Barbara Lee
Party		Candidate	Votes	%
	Democratic	Don Perata	164,476	77.2
	Republican	Deborah Wright	34,461	16.2
	Peace and Freedom	Marsha Feinland	14,250	6.7
Total votes			213,187	100.0
	Democratic hold

1996

California State Senate election, 1996
Party		Candidate	Votes	%
	Democratic	Barbara Lee	196,430	78.2
	Republican	Thomas N. Hudson	37,341	14.9
	Peace and Freedom	Robert J. Evans	8,870	3.5
	Natural Law	Carol Flyer Prettie	8,465	3.4
Total votes			251,106	100.0
	Democratic hold

1992

California State Senate election, 1992
Party		Candidate	Votes	%
	Democratic	Nicholas C. Petris	228,283	84.6
	Peace and Freedom	David Campbell	41,555	15.4
Total votes			269,838	100.0
	Democratic hold

References

1 2 3 4 "Citizens Redistricting Commission Final Report, 2011" (PDF).
↑ "Report of Registration as of February 18, 2020" (PDF).
↑ "The Next Legislature (1882)". cdnc.ucr.edu.
↑ "26th Senate Session". babel.hathitrust.org.
↑ "The State and the Southland (Death of Senator Eugene McAteer)". cdnc.ucr.edu.
↑ "Milton Marks takes Oath of Office". babel.hathitrust.org.
↑ "Barbara Lee Resignation letter". babel.hathitrust.org.

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] "Report of Registration as of February 18, 2020" (PDF).

[3] "The Next Legislature (1882)". cdnc.ucr.edu.

[4] "26th Senate Session". babel.hathitrust.org.

[5] "The State and the Southland (Death of Senator Eugene McAteer)". cdnc.ucr.edu.

[6] "Milton Marks takes Oath of Office". babel.hathitrust.org.

[7] "Barbara Lee Resignation letter". babel.hathitrust.org.

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