Georgia Tech is well-known for their HIGH-tech. Now they’ve come through again. See their risk-assessment tool at https://covid19risk.biosci.gatech.edu/. The risk level is the estimated chance (0-100%) that at least 1 COVID-19 positive individual will be present at an event in a county, given the size of the event. Just use the drop-down to pick the county then use the slider to set the event size. (Thanks Caleb!)
5) Planning an In-Person Event? This Tool Can Help You Assess Risk
Somewhat helpful, but a lot of missions activity draws people from many different counties, and states. But it is a good step. Now, if you could upload an attendance list that contained all the counties (or states) you were drawing people from and it gave you the stats… But, then again, I guess it is still safest to assume someone will have it and we should be careful regardless.