Below is a dashboard detailing California Bay Area counties Covid19 cases and deaths. I find plotting daily changes of cases and death useful in thinking about trends, but the Covid dashboards I have come across do not do this.
I also like to check Bing's search result sidebar at https://www.bing.com/search?q=covid%20san%20francisco sometimes, and the data there matches up with my dashboard depending on when you check the website. I.e., Bing and I probably both use the Worldometers.info data.
All I did here is to use the template I have for the country level data and apply to the county level data that are now available at https://www.worldometers.info/coronavirus. You can find more information on my country level dashboard in a prior post.
Embedded version below. Direct link to the Covid dashboard here.