Election results for 1997-2009 are expected to be published in May, 2025.
For legacy reports and formats please visit our Past Election Results Archive.

Mark Peterson

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Victories

Won 0 out of 1 generals.
Won 0 out of 2 primaries.
Won 0 out of 3 total contests.

Mark Peterson

Past Contests

Date Stage Office District Candidates
2014Jun 3 Primary Election District Attorney-Public Administrator Contra Costa County
Mark Peterson ran unopposed. Candidates »
Candidate Votes %
Mark Peterson
 109,814 98.7%
Write-In
 1,503 1.4%
Total Votes Cast 111,317  
Overvotes/Undervotes 40,471  
Total Ballots Cast 151,788  
Registered Voters 528,162  
See Details for this Contest »
2010Nov 2 General Election District Attorney-Public Administrator Contra Costa County
Mark Peterson ran (57%) against Dan O'Malley. Candidates »
Candidate Votes %
Mark Peterson
 163,810 57.4%
Dan O'Malley
 120,408 42.2%
Write-In
 1,015 0.4%
Total Votes Cast 285,233  
Overvotes/Undervotes 67,454  
Total Ballots Cast 352,687  
Registered Voters 533,825  
See Details for this Contest »
2010Jun 8 Primary Election District Attorney-Public Administrator Contra Costa County
Mark Peterson ran (47%) against 2 opponents. Candidates »
Candidate Votes %
Mark Peterson
 82,774 47.4%
William "Dan" O'Malley
 63,700 36.5%
Elle B. Falahat
 27,403 15.7%
Write-In
 610 0.4%
Total Votes Cast 174,487  
Overvotes/Undervotes 35,930  
Total Ballots Cast 210,417  
Registered Voters 525,992  
See Details for this Contest »