The Washington-3-1 Representative District is a one-member state Representative district in the U.S. state of Vermont. It is one of the 108 one or two member districts into which the state was divided by the redistricting and reapportionment plan developed by the Vermont General Assembly following the 2000 U.S. Census. The plan applies to legislatures elected in 2002, 2004, 2006, 2008, and 2010. A new plan will be developed in 2012 following the 2010 U.S. Census.