County of Sonoma, California
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Election Calendars

June 5, 2018 Consolidated Primary Election

*For dates that fall on a Saturday, Sunday or holiday, use the next regular business day for transactions

Start DateDeadlineEvent
12/14/20172/7/2018Signatures-In-Lieu of Filing Fee Period (Judicial Candidates)
12/14/20172/7/2018Signatures-In-Lieu of Filing Fee Period
1/29/20182/7/2018Declaration of Intention (Judicial Candidates)
2/12/20183/9/2018Declaration of Candidacy and Nomination Paper Period
3/7/20186/5/201824 Hour Campaign Finance Reporting Period
1/1/20184/21/20184/26/2018 deadline for 1st Pre-Election Campaign Finance Statement
 3/9/2018Consolidation deadline, measures
 3/9/2018Tax rate statements deadline, bond measures
*3/10/2018 Measure letter assignment
 3/14/2018Deadline to amend/withdraw measure
 3/19/2018Argument deadline
 3/19/2018Impartial analysis due
 3/29/2018Rebuttal deadline (only if opposing arguments are filed)
4/6/2018 Military/Overseas 60 Day Ballots
4/22/20185/19/20185/24/2018 deadline for 2nd Pre-Election Campaign Finance Statement
4/26/2018 First day County Voter Information Guide may be mailed
5/7/2018 Voting by mail opens
 5/21/2018Registration deadline
 5/29/2018Deadline to request VBM ballots by mail
6/5/2018 Election Day (7a.m. to 8p.m.)
 6/8/2018Last day to receive VBM ballot postmarked
no later than 6/5/2016
 6/13/2018Unsigned Ballot Statements must be received by the Registrar of Voters (in person, by fax or mail) no later than 5 pm (postmark is not sufficient).
 7/5/2018Deadline to certify election results

November 6, 2018 Consolidated Primary Election

Start DateDeadlineEvent
7/16/20188/10/2018Declaration of candidacy and nomination paper period
8/11/20188/15/2018Extended nominations period
8/8/201811/6/201824 Hour Campaign Finance Reporting Period
7/1/20189/22/20189/27/2018 deadline for 1st Pre-Election Campaign Finance Statement
7/6/20188/10/2018Consolidation deadline, measures
7/6/20188/10/2018Tax rate statements deadline, bond measures
*8/11/2018 Measure letter assignment
 8/15/2018Deadline to amend/withdraw measure
 8/20/2018Argument deadline
 8/20/2018Impartial analysis due
 8/30/2018Rebuttal deadline (only if opposing arguments are filed)
9/7/2018 Military/Overseas 60 Day Ballots
9/23/201810/20/201810/25/2018 deadline for 2nd Pre-Election Campaign Finance Statement
9/27/2018 First day County Voter Information Guide may be mailed
10/8/2018 Voting by mail opens
 10/22/2018Registration deadline
 10/30/2018Deadline to request VBM ballots by mail
11/6/2018 Election Day (7a.m. to 8p.m.)
 11/9/2018Last day to receive VBM ballot postmarked no later than 11/6/2018
 11/14/2018Unsigned Ballot Statements must be received by the Registrar of Voters (in person, by fax or mail) no later than 5 pm (postmark is not sufficient).
 12/6/2018Deadline to certify election results