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 United States census.
A new plan will be developed in 2012 following the 2010 United States census.
The Washington-6 District includes all of the Washington County towns of Calais, Marshfield, and Plainfield.
The one member Washington-6 District had a population of 4,311 in that same census, 6.21% above the state average.
After the 2010 Census, each member represented 4,202 residents.