As a result of a referendum held on Election Day in November 2002, Jefferson County voters approved County Local Law #1 of 2002, "A Local Law Reapportioning the Board of Legislators of the County of Jefferson Based Upon the 2000 Federal Decennial Census". This Law establishes Legislative district boundaries based on recent population shifts evident within the County.
Every ten years, the Legislature is redistricted according to the latest national census and various state statutes. Below are the maps adopted by the Legislature effective November, 2013. These districts are the ones legislators will represent beginning January 1, 2014.