You can try
http://wardmap.hpaulsen.com. I haven't updated it in a while; someone mentioned having problems saving a file; the HAM info is no longer active; etc... However, it
will allow you to draw (or import a kml file as long as it contains polygons) regions and generate statistics for them. I would suggest drawing regions for small subdivisions. Then use the "Area Report" feature on "Export Map/List" to generate statistics for the areas. You can then manually mix-and-match adjacent areas. It doesn't have active temple recommend information, but it does list Melchizedek priesthood, Prospective Elders, Women, Young Men, Young Women, Primary, and Infants.
Edit - "for each area" to "for the areas", since it will do all the areas at once....