[jonathanoliver]

Thanks for the shout-out. Founder of Smarty here.

Regarding article, it really depends on the use case of whether to use ZIP Code (TM), postal code, Canada Post Forward Sortation Area, lat/lon, Census Bureau block and tract, etc.

As has been noted, the ZIP Code is often good enough for aggregating data together and can be a good first step if you don’t know where to start.