COVID the heat

Yesterday in Marin: 106!!!! confirmed new cases of COVID. 916 new tests. No new hospitalizations or deaths.

Nifty heat map depicts confirmed case count as % of population for all 58 California counties. The outliers, high and low, make it rather weird. Here are some highlights:

* Dark red: Imperial county, bordering Mexico and Arizona - 4.5%!

* Dark blue: several northern counties - below 0.1% (Modoc in the north east, large in area, tiny in population, has no cases). Alpine County, south of Tahoe, has a 0.09% count ... but that is literally just one case.

* Los Angeles: 10 million people - the most populous county in the USA - 1.43%

* Marin County: 0.79%

Data sources: LA Times COVID github for the case counts, accurate as of 15th July; Marin HHS for Marin data (subtracting SQ), accurate as of 16th July; Wikipedia for county population.

California county COVID case density as of 15th July 2020.