Beginning in 2014, the Sonoma County Board of Supervisors took steps to support the Sonoma County Registrar of Voter’s commitment to address the risks posed by an outdated, aging voting system, and prepare to replace it. In 2017, Sonoma County Registrar of Voters replaced the outdated voting system with a newer paper ballot system that is more effective, secure, and responsive to voter needs. The Registrar of Voters Office began using the new system in March of 2019.
About the Voting System
Sonoma County uses the Dominion Voting Systems paper ballot optical scan voting system. This voting system has been certified for use in California by the Secretary of State. Using paper ballots, voters fill in ovals next to their choice.
Ballots are transported to the secure, Sonoma County Ballot Counting Room, where they are tabulated on the Dominion ImageCast Central central count scanner. With this system, you can have confidence that your vote is counted accurately and reliably.
The ImageCast Central Tabulation System
The Dominion Voting Systems ImageCast Central tabulation system is an easy-to-use, high-speed central paper ballot counter and vote tabulator that supports a full range of ballot sizes complexities. The ImageCast Central securely processes paper ballots at a speed of over 150 ballots per minute.
The Dominion Voting Systems ImageCast X is a ballot-marking system designed to provide privacy and accessibility to voters who are blind, vision-impaired, or have a disability or condition that would make it difficult or impossible to mark a ballot in the usual way.
The ImageCase X technology also provides language assistance to voters who are more comfortable speaking a different language or who need help to better understand written instructions.
State Voter Information
Online Voter Registration
California Online Voter Registration
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No Party Preference Voters
Voting in Presidential Primary Elections as a No Party Preference Voter
Voter Bill of Rights
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