This is a screenshot from an interactive map from The Chronicle of Higher Education.
This tool will allow you to view by date all adults with college degrees in the United States. This tool can help you identify markets and demographics that are important to your marketing/advertising strategies. As you see, you can gather analysis by wealth, gender, and race. You can also click on any specific county for it's individual stats.
This interactive map could be beneficial to enrollment marketing and recruitment advertising efforts.