Back in 2021 when I was posting weekly (and later, monthly) analysis of COVID vaccination rates at the county level, several counties in particular caught my eye for different reasons. One of these was Marin County, California. As I noted at the time:
Of counties with more than 100,000 residents, the top-vaxxed are Marin County, CA (76.9% vaxxed); Sumter County, FL (76.4%); and Montgomery County, MD (76.2% vaxxed).
