Shapefiles
Became Law August 23, 2013 with enactment of House Bill 1
Note: Layers are derived from 2010 Census Geography.

Became Law February 10, 2012 with enactment of House Bill 302
Note: Layers are derived from 2010 Census Geography.


Shapefiles
Became Law January 31, 2002 with enactment of House Bill 1
Note: Layers are derived from 2000 Census Geography.