The Suffolk County Board of Elections was established in 1935 as a bipartisan agency responsible for all aspects of the electoral process, from voter registration to election results. In 1976, with the adoption of New York State Election Law, Suffolk's Board became part of the New York State Board of Elections, with expanded regulatory duties.

The Suffolk County Board of Elections is committed to encouraging voter participation, administering fair and accurate elections, regulating disclosure and limitation, and protecting the rights of voters within Suffolk's jurisdiction. In addition to supporting the laws and regulations governing elections, as set forth by the State of New York, Suffolk County Board of Elections is determined to advocate proper campaign practices in accordance with Fair Campaign Code and preserve the voters' confidence in the democratic process.