There are USPS 41,683 zipcodes!

I’ve been working on some updates to my “Stickers And Stamps” project, and including more and more data into the project. So much to do and learn! To be honest, the more I learn about how the USPS works, the more impressed I am.

To date, I’ve mailed out more than 3,000 letters and stickers for this project and plotting them on the map. When the project started, it was just a few hundred. With the growth of…