According to a survey of 1,001 Americans by analyst firm Echelon, 33% of Americans have heard of Dogecoin. It is the second most popular digital currency among Americans after Bitcoin. Etherium, Litecoin, Tether, and Binancecoin are among the next most popular digital currencies among Americans. According to the survey, only 3% of people in this country have heard the name of XRP Ripple token.