Change in California COVID-19 Cases Since Reopening

These four counties showed the highest increases in new cases:
Placer: 454.5%
Yolo: 383.3%
Kings: 245.5%
Imperial: 293.5%

These four counties showed decreases in the average number of new cases
Humboldt: -31.6%
Sonoma: -13.6%
San Francisco: -2.6%
Los Angeles: -5.8%

Note: the change in the difference in the average number of new cases for the seven days prior to moving into advanced Stage 2 (May 18 for the six Bay Area counties that didn't advance, along with Imperial County) and all days since, through Sunday 6/14.
  

Source: SF Chronicle, These California counties have seen a surge in coronavirus cases since reopening