Hello,
I recently saw this graphic and would like to make something similar of my own with street address data that I have in a spreadsheet.
Can someone point me in the right direction to learn how to do this?
Thank you 
So you have a list with addresses from the whole country, and you want to display in what state you have how many addresses?
This is more a geographical aim rather then special OSM.
Maybe ask at https://gis.stackexchange.com/
I do a list of addresses throughout the country and I would like to display how many addresses from each state.
I will dig/ask on stack exchange.
Thank you very much!