Richard,

Great point about administrative boundaries and ZIP code boundaries. It'd
be really interesting to see the evolution of ZIP codes over the decades.

Has anyone seen visualizations of ZIP changes previously? Or know whether
there are historical datasets of ZIP boundaries?

On Fri, May 1, 2015 at 9:20 AM, Richard Welty <[email protected]>
wrote:

>  On 5/1/15 11:00 AM, [email protected] wrote:
>
> Here are a couple of useful posts to keep in mind as we model our data:
>
>    - http://wiesmann.codiferes.net/wordpress/?p=15187&lang=en
>    -
>    https://www.mjt.me.uk/posts/falsehoods-programmers-believe-about-addresses/
>
> The addresses post is a bit more specific to the UK but can be generalized.
>
>   actually, the address one is pretty good on US issues. it misses
> slightly on one US zip code
> issue; zip code boundaries are only vaguely related to administrative
> boundaries
> and assuming they are the same will be quite wrong in many, many places in
> the US.
>
> richard
>
> -- [email protected]
>  Averill Park Networking - GIS & IT Consulting
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-- 
Tod Robbins
Digital Asset Manager, MLIS
todrobbins.com | @todrobbins <http://www.twitter.com/#!/todrobbins>
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