Current assemblymember
California's 21st State Assembly district is one of 80 California State Assembly districts. It is currently represented by Democrat Diane Papan of San Mateo .
District profile
The district includes most of San Mateo County, California .
Election results from statewide races
Year
Office
Results
2021
50.1 - 49.9%
Elder 58.8 - 6.3%
2020
Biden 55.3 – 42.3%
2018
Governor [6]
Newsom 54.6 – 45.4%
De Leon
54.3 – 45.7%
2016
President
Clinton 54.6 – 35.9%
Senator
Harris 51.0 – 49.0%
2014
Governor
Brown 53.6 – 46.4%
2012
President
Obama 55.6 – 42.0%
Senator
Feinstein 57.2 – 42.8%
List of assembly members
Due to redistricting, the 21st 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
C. B. Culver
Republican
January 5, 1885 - January 3, 1887
Yolo
Levi B. Adams
Democratic
January 3, 1887 - January 5, 1891
Reese Clark
Republican
January 5, 1891 - January 5, 1893
H. C. Chipman
January 5, 1893 - January 7, 1895
Sacramento
L. T. Hatfield
January 7, 1895 - January 4, 1897
Scott F. Ennis
January 4, 1897 - January 2, 1899
William D. Knights
January 2, 1899 - January 1, 1901
Louis F. Reeber
Democratic
January 1, 1901 - January 5, 1903
Stephen H. Olmsted
Republican
January 5, 1903 - January 7, 1907
Marin
Edward I. Butler
January 7, 1907 - January 2, 1911
George H. Harlan
January 2, 1911 - January 6, 1913
Walter A. McDonald
January 6, 1913 - January 4, 1915
San Francisco
Prohibition
January 4, 1915 - January 8, 1917
Frederick C. Hawes
Republican
January 8, 1917 - January 5, 1931
Frank Lee Crist
January 5, 1931 - January 2, 1933
Santa Clara
Joseph P. Gilmore
January 2, 1933 - January 4, 1937
San Francisco
Joseph Francis Sheehan
Democratic
January 4, 1937 - January 2, 1939
Joseph P. Gilmore
Republican
January 2, 1939 - January 6, 1941
John D. Welch
Democratic
January 6, 1941 - January 4, 1943
Albert C. Wollenberg
Republican
January 4, 1943 - September 19, 1947
Resigned from State Assembly.[8]
Arthur H. Connolly Jr.
November 24, 1947 - January 5, 1953
Won special election to fill the vacant seat left by Wollenberg. He was sworn in on November 24, 1947.[9]
Caspar Weinberger
January 5, 1953 - January 5, 1959
Milton Marks
January 5, 1959 - October 25, 1966
Gordon W. Duffy
January 2, 1967 - November 30, 1974
Kings , Tulare
Victor Calvo
Democratic
December 2, 1974 - November 30, 1980
San Mateo , Santa Clara
Byron Sher
December 1, 1980 - March 28, 1996
Resigned from the Assembly to take Oath of office in the State Senate for the 11th district after winning a special election.[10]
Ted Lempert
December 2, 1996 – November 30, 2000
Joe Simitian
December 4, 2000 – November 30, 2004
Ira Ruskin
December 6, 2004 – November 30, 2010
Rich Gordon
December 6, 2010 - November 30, 2012
Adam Gray
December 3, 2012 – December 5, 2022
Merced , Stanislaus
Diane Papan
December 5, 2022 – Present
San Mateo
Election results (1992–present)
2022
2022 California Assembly
election
Primary election
Party
Candidate
Votes
%
Democratic
Diane Papan
40,434
41.3
Democratic
Giselle Hale
19,400
19.8
Republican
Mark Gilham
19,078
19.5
Democratic
James H. Coleman
11,269
11.5
Democratic
Alison M. Madden
3,359
3.4
Democratic
Maurice Goodman
2,664
2.7
Green
Tania Solé
1,620
1.7
Total votes
97,824
100.0
General election
Democratic
Diane Papan
94,676
72.4
Democratic
Giselle Hale (withdrawn)
36,014
27.6
Total votes
130,690
100.0
Democratic hold
2020
2018
2016
2014
2012
California State Assembly election, 2012
Primary election
Party
Candidate
Votes
%
Republican
Jack Mobley
20,148
45.4
Democratic
Adam Gray
14,391
32.4
Democratic
Lesa Rasmussen
4,305
9.7
Democratic
Tommy Jones
4,055
9.1
Democratic
Robert R. Sellers
1,452
3.3
Total votes
44,351
100.0
General election
Democratic
Adam Gray
63,349
58.2
Republican
Jack Mobley
45,534
41.8
Total votes
108,883
100.0
Democratic hold
2010
2008
2006
2004
2002
2000
1998
1996
1994
1992
See also
References
External links
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