Here are four Arizona counties that are all similar in population, and low density

Two have mask mandates, one never has, and one had all major cities rescind masks ending on 10/21

Since that time, Yuma has had the worst case growth despite masks & Coconino has remained high

Mohave and Coconino, which are relatively close, have maintained very similar growth rates, despite Mohave rescinding masks, while Yuma has far outpaced Cochise, despite both being on the Southern side

One city in Cochise has re-instated masks, but it’s not countywide

Here are the demographic breakdowns:

Yuma - Pop: 213,787 / Density: 38 per sq. Mile
Mohave - Pop: 212,181 / Density: 15 per sq. Mile
Coconino - 143,476 / Density: 8 per sq. Mile
Cochise - 125,992 / Density: 20 per sq. Mile

There has been no benefit for mask mandates for similar counties in Arizona in the last month, if anything the results have been worse.

Looking forward to the CDC’s version!

Let’s add two more counties, Santa Cruz (green) requires masks, Yavapai (brown) has some cities that require them and some that don’t.

As before, masked counties are doing worse