San Mateo County Board of Supervisors San Mateo County Board of Supervisors
Type Term limits
3 terms (12 years) President
Vice President
Warren Slocum since 2023
Supervisor, First District
Supervisor, Second District
Noelia Corzo since 2023
Supervisor, Third District
Ray Mueller since 2023
Supervisor, Fourth District
Warren Slocum since 2013
Supervisor, Fifth District
David Canepa since 2017
Seats 5 Political groups
Officially nonpartisan
Length of term
4 years, three term limit Two-round system Last election
November 8, 2022 Next election
November 5, 2024 https://www.smcgov.org/bos
The San Mateo County Board of Supervisors is the five-member elected body that supervises the operation of San Mateo County , California . Board members represent one of five districts of roughly equal population within the county, elected, since a 2012 charter change, only by voters in their own district.[ 1] The current board members are Dave Pine (District 1), Noelia Corzo (District 2), Ray Mueller (District 3), Warren Slocum (District 4), and David Canepa (District 5).
Election results
2010
District 2 Election, June 8, 2010[ 2]
Candidate
Votes
%
Carole Groom
71,549
75.4
Daniel Kaul
23,381
24.6
Total votes
94,930
100.0
Voter turnout
23.7%
District 3 Election, June 8, 2010[ 3]
Candidate
Votes
%
Don Horsley
40,568
39.1
April Vargas
24,534
23.6
John Hickey
16,699
16.1
Matt Grocott
15,269
14.7
Michael Stogner
6,731
6.5
Total votes
103,801
100.0
Voter turnout
26.0%
District 3 Runoff Election, November 2, 2010[ 4]
Candidate
Votes
%
Don Horsley
98,146
56.4
April Vargas
75,875
43.6
Total votes
174,021
100.0
Voter turnout
50.2%
2011
An all-mail-ballot special election was held to fill the vacancy created when Supervisor Mark Church resigned to assume office as San Mateo County Chief Elections Officer & Assessor-County Clerk-Recorder on January 3, 2011.[ 5] The six candidates were San Mateo Union High School District Board President Dave Pine , San Mateo County Community College District Board of Trustees President Richard Holober, Millbrae City Council member Gina Papan, Burlingame Mayor Terry Nagel, retired aerospace engineer Demetrios Nikas, and victim advocate Michael Stogner.
District 1 Special Election, May 3, 2011[ 6]
Candidate
Votes
%
Dave Pine
23,856
26.8
Richard Holober
22,299
25.1
Gina Papan
21,796
24.5
Terry Nagel
8,683
9.8
Michael Stogner
6,269
7.1
Demetrios Nikas
2,870
3.2
Total votes
88,903
100.0
Voter turnout
26.0%
2012
Warren Slocum replaced termed-out District 4 Supervisor Rose Jacobs Gibson in January 2013 in the last at-large vote for Supervisor due to the passage of Measure B, mandating supervisorial elections by voters of the same district.
District 4 Election, June 5, 2012[ 7]
Candidate
Votes
%
Warren Slocum
37,542
38.4
Shelly Masur
20,989
21.4
Kirsten Keith
14,853
15.2
Carlos Romero
8,707
8.9
Memo Morantes
7,989
8.2
Andy Cohen
4,723
4.8
Ernesto "Ernie" Scmidt
3,085
3.2
Total votes
97,888
100.0
Voter turnout
29.0%
District 4 Runoff Election, November 6, 2012[ 8]
Candidate
Votes
%
Warren Slocum
131,015
54.7
Shelly Masur
108,373
45.3
Total votes
239,388
100.0
Voter turnout
66.2%
2022
Both District 2 Supervisor Carole Groom and District 3 Supervisor Don Horsley were termed out. San Mateo-Foster City School District Trustee Noelia Corzo beat Belmont City Councilmember Charles Stone to replace Groom and Menlo Park City Councilmember Ray Mueller beat San Carlos City Councilmember Laura Parmer-Lohan to replace Horsley.
District 2 Election, June 7, 2022[ 9]
Candidate
Votes
%
Charles Stone
13,470
45.84%
Noelia Corzo
12,635
43.00%
Cameron Rolfe
3,282
11.17%
Total votes
35,195
100.0
Voter turnout
40.36%%
District 3 Election, June 7, 2022[ 10]
Candidate
Votes
%
Ray Mueller
13,888
34.45%
Laura Parmer-Lohan
12,778
31.70%
Virginia Chang Kiraly
7,986
19.81%
Steven Booker
5,659
14.04%
Total votes
47,048
100.0
Voter turnout
45.11%%
District 2 Runoff Election, November 8, 2022[ 11]
Candidate
Votes
%
Noelia Corzo
22,246
51.74%
Charles Stone
20,747
48.26%
Total votes
53,211
100.0
Voter turnout
61.23%%
District 3 Runoff Election, November 8, 2022[ 12]
Candidate
Votes
%
Ray Mueller
35,887
62.22%
Laura Parmer-Lohan
21,790
37.78%
Total votes
70,514
100.0
Voter turnout
67.79%%
2024
District 5 Supervisor David Canepa is up for reelection to his third term and both District 1 Supervisor Dave Pine and District 4 Supervisor Warren Slocum are term limited.
District 1
The incumbent is Dave Pine , who has represented the district since 2011 and was re-elected in 2020.[ 13] He is term limited in 2024.[ 14]
Candidates
Declared
Withdrew
Potential
Declined
Irving Torres, housing advocate[ 18]
District 4
The incumbent is Warren Slocum, who has represented the district since 2013 and was re-elected in 2020.[ 13]
Candidates
Declared
Potential
Declined
District 5
The incumbent is David Canepa, who has represented the district since 2017 and was re-elected in 2020.[ 13]
Candidates
Declared
David Canepa, incumbent Supervisor[ 20]
References
^ Silverbarb, Bill. "Four enter race for supervisor: Race starting early, North County residents only to vote in 2016 district election" . San Mateo Daily Journal . Retrieved 12 April 2015 .
^ "Statement of the Vote, Gubernatorial Primary, June 10, 2010", page 766 of 821 , Warren Slocum, Chief Elections Officer & Assessor-County Clerk-Recorder, Retrieved May 31, 2011.
^ "Statement of the Vote, Gubernatorial Primary, June 10, 2010", page 766 of 821 , Warren Slocum, Chief Elections Officer & Assessor-County Clerk-Recorder, Retrieved May 31, 2011.
^ "Statement of the Vote, Gubernatorial General Election, November 2, 2010", page 213 of 345 , Warren Slocum, Chief Elections Officer & Assessor-County Clerk-Recorder, Retrieved May 31, 2011.
^ "Filling the upcoming vacancy on the Board of Supervisors in 2011" , Mark Church, Chief Elections Officer & Assessor-County Clerk-Recorder, Retrieved May 31, 2011.
^ "Statement of the Vote, Consolidated Local Special Election, May 3, 2011" , Mark Church, Chief Elections Officer & Assessor-County Clerk-Recorder, Retrieved May 31, 2011.
^ "Statement of the Vote, Presidential Primary Election, June 5, 2012" , Mark Church, Chief Elections Officer & Assessor-County Clerk-Recorder.
^ "November 21, 4:30 p.m. Semi-Official Results, November 6, 2012 Presidential General Election" , Mark Church, Chief Elections Officer & Assessor-County Clerk-Recorder.
^ "Statewide Direct Primary Election June 7, 2022 Official Results" , Mark Church, Chief Elections Officer & Assessor-County Clerk-Recorder.
^ "Statewide Direct Primary Election June 7, 2022 Official Results" , Mark Church, Chief Elections Officer & Assessor-County Clerk-Recorder.
^ "Statewide General Election November 8, 2022 Official Results" , Mark Church, Chief Elections Officer & Assessor-County Clerk-Recorder.
^ "Statewide General Election November 8, 2022 Official Results" , Mark Church, Chief Elections Officer & Assessor-County Clerk-Recorder.
^ a b c "March 3, 2020 Election Information | San Mateo County Assessor-County Clerk-Recorder & Elections - ACRE" . smcacre.org . Retrieved 2023-07-14 .
^ a b c "Candidates are jumping into local 2024 races – Palo Alto Daily Post" . Retrieved 2023-07-14 .
^ a b c staff, Jon Mays Daily Journal (2023-09-19). "Jackie Speier running for supervisor" . San Mateo Daily Journal . Retrieved 2023-09-20 .
^ a b c d e f g h i j k l m Simon, Mark (2023-06-15). "Notes, quotes and dust motes" . San Mateo Daily Journal . Retrieved 2023-07-14 .
^ Simon, Mark (2023-04-27). "The end of 'the San Mateo County way' " . San Mateo Daily Journal . Retrieved 2023-07-18 .
^ Simon, Mark (2023-06-29). "Pursuing happiness" . San Mateo Daily Journal . Retrieved 2023-07-14 .
^ Simon, Mark (2021-09-16). "Free Brisbane!" . San Mateo Daily Journal . Retrieved 2023-07-18 .
^ "Home | Re-Elect David Canepa for San Mateo County Supervisor" . Canepa23 . Retrieved 2023-07-14 .
External links