In the last decade, an estimated 40 million Americans lived within 1 mile of a mass shooting

[billh58]

5. From the article:

"To determine the number of people who have lived near mass shootings, CNN examined data from the GVA and the US Census Bureau. Since January 2014, the GVA has provided a daily count of shootings derived from thousands of sources, such as police reports and media articles, checked by a team of researchers. The included mass shootings incorporate hate crimes, domestic violence, gang violence and other categories."

See links to the GVA here: https://www.democraticunderground.com/12629939

Hope this helps...