SALISBURY — State data show a wide gap between the highest and lowest COVID-19 vaccination rates in Rowan County ... from a May 11 map for people 12 and older by Census tract.

You can zoom in and explore the map below. A census tract is a piece of a county, usually between 1,200 and 8,000 people, with an ideal population of around 4,000, according to the U.S. Census Bureau.