Contact: Mark Church, Chief Elections Officer & Assessor-County Clerk-RecorderAlternate: David Tom, Deputy Assessor-County Clerk-Recorder (Redwood City, CA) The first of 44 styles of Sample Ballot & Official Voter Information Pamphlets will be mailed to the 341,762 voters of San Mateo County beginning on Wednesday, October 3 and concluding approximately 10 business days later.