Pre-formatted district maps satisfy many needs, but are limited in the amount of detail they can provide.
With this viewer, one can interactively examine district boundaries.
Note that districts are constructed using census geography.
Census geography matches up with decennial census population counts, upon which district plans must be based.
This viewer overlays district boundaries on non-census base maps.
This approach provides a visually appealing environment with relatively quick response times, though features from different sources do not always align perfectly.
To resolve very specific boundary questions, it is often necessary to refer to the census base geography with which the districts were originally drawn.
Included in the map is a "Voting District", or "VTD" layer.
VTDs represent voter precincts as incorporated into the 2010 census geography.
Current voter precincts are largely the same as 2010 VTDs, though precinct geography has evolved somewhat since it was captured for the last census.
Please note also that the address search function uses a commercial geocoding service. While locations returned are typically accurate, they should not be considered definitive, especially in rural areas.
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