In 2019, the ATSC estimated that more than 60 “first markets”—including the top 40 markets—would deploy NextGen TV standard to its viewers by the end of 2020. The organization has since revised its estimate of that deadline to mid-2021 due to the pandemic. (updated Oct. 27, 2020)

With these markets, ATSC says ATSC 3.0 will reach 70% of all viewers in the U.S. 

ATSC has created a map for NextGen TV deployments in the U.S. 

Here is a complete list of the ATSC 3.0 deployment breakdown: 

List at TV Technology.