If you are registered to vote, you can use the NYS Voter Lookup tool to find out which districts you reside in, as well as where your Early Voting and Election Day polling locations are, and check other voter registration information.
Maps of these districts, and additional information about the officeholders of these positions, can be found on the Board of Elections department page and the County Legislature page. Full maps of the NYS Congressional and NYS Legislative Districts are also available on the NYS Board of Elections web page.