This chart relies on data from the CDC tracking page. It shows the 7 day average of “cases per 100k of population” for the three counties. The pink line displays the average value for the counties weighted by the countys’ population. The chart is updated nightly.
You can get data directly from the CDC using their tracking page. Once you are there you’ll have to select “Pennsylvania” and then each of the three counties we primarily serve, Chester, Delaware, and Montgomery. There is quite a bit of useful data on these pages.
Below are links to information sites for all three local counties.
New York Times
COVID Act Now
It is probably useful to be familiar with these tools, especially if you are planning any kind of travel, but also because as the situation evolves and new metrics become relevant, new data will likely appear here first.