San Dimas has a variety of public mapping tools available. There are different tools for different purposes, and different tools for different levels of technical skill and interest.

The tools available are:

DistrictR – a simple online map drawing tool to easily draw neighborhoods or communities of interest.

Paper-only Maps – for those without internet access or who prefer paper.

Paper maps with a Microsoft Excel spreadsheet – used to calculate population totals

Interactive Review Map – to review, analyze, and compare maps, not to create them.  Zoom in and out on map boundaries, view population counts/ID#s, and view draft maps (once the draft maps are released).  Similar to Google Maps in ease of use.

    • Tools needed:
      • Interactive Review Map

Submit maps to After you submit your map, the demographic consultants will generate the population and other demographic details for your proposed map. Maps can be viewed on the Draft Maps page or on the Interactive Review Map.

It is helpful if you submit written comments with your map describing how your map was drawn to meet the required criteria. An example of this would be describing the specific neighborhoods or communities of interest that are kept within a single district.