Create your own Congressional District Bing maps with this script writer.
Bing maps allow for the creation of complex polygons and with the addition of cartographic boundary files
available from the US Census Bureau you can create detailed shapes of all 437 congressional voting districts within the United States.
Listed within the drop-down menus below are all of the congressional voting districts for all 50 states plus DC and Puerto Rico.
Click on any one of them and a new window will open with a basic map with all of the boundaries for that district.
From there you can change many of the variables that make up the map to display it the way you want and have all of the code to put the map on your site.
The cartographic boundary files from the 2000 Census are available from the US Census Bureau at the following location.