I'm having difficulty finding Shapefiles for Nassau and Suffolk County (Long Island, NY) Legislative Districts. While both government sites provide a map (Nassau | Suffolk) of the district boundaries, they do not provide political and/or administrative Shapefiles, similar to the resources provided by NYC.gov. I tried searching the Shapefiles provided by Census.gov, however county-based legislative district files weren't available.
Do you have any suggestions on where I can find these types of Shapefiles?
Any assistance you can provide is greatly appreciated.