Mobile Users: If you are having issues using the interactive version of this visualization, you can find a static version of it here.
To gather the data for this visualization, I utilized the Census Bureau’s API to create a custom table for myself. I decided to use the ACS 5 Year Estimates for 2011-2015 so I could get data on all counties. I used the html address below to pull the data. You can find more out about the Census API at their website. You will need a free API Key to pull data from their site. This link provides a copy of the Excel workbook I created from the pull.
Once I had the data in a usable form, I used Tableau to create the visualization. I combined the data fields of “Less than 9th Grade” and “9th to 12th Grade, No Diploma” to determine the proportion of the population without a high school education. If you would like to alter or adjust the visualization, you can download the workbook using the toolbar above.
If you want to keep up with our surveys and data analysis, be sure to follow us on Twitter and Facebook.
— Overflow Data (@overflow_data) March 7, 2017