Walgreens has a COVID Positivity Tracker to see positivity rates done by their labs for both the US as a whole and for individual states (not updated in this image, go to the link).
The original CDC Community Transmission map is a good source for understanding community spread. Don’t waste time on the newer Community Levels map. It causes people to underestimate risk. Scroll down in this frame to see the US map.
Also look at the Iowa COVID-19 Tracker website.
Find their online data tools here.