Approximately 7 billion are eaten between Memorial Day and Labor Day each year with 150 million eaten on July 4 alone, according to the National Hot Dog and Sausage Council (NHDSC). Hot dogs rank as a mealtime favorite at other times of the year, too. NHDSC figures show U.S. grocery store shoppers spent more than $6.2 billion on hot dogs and sausages in 2019. Millions more were spent on hot dogs and sausages at ballparks, airports and other venues that year.