Anyone know of a site/program to organize charts by zip code?

I have a list of 2000+ buyers and would like to create some sort of chart that would display each zip code's percentage or total. Sort of like a pie chart, but with small portions like zips/cities/counties instead of just slices. Anything like that would be awesome. Open to alternatives. Anything you have would help. Thanks alot.Anyone know of a site/program to organize charts by zip code?
Have you tried Microsoft Access?

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