In comparison, 18.3 million tuned in for the England men's team opener in the 2018 World Cup against Tunisia in Russia, attracting 69.2% of the UK's total TV audience.
According to a FIFA spokesperson, as of Friday June 7, approximately "965,000 tickets have been allocated so far to fans around the world."
Twenty of the 52 matches in the competition have sold out, but it looks unlikely the attendance will surpass the total attendance at the 2015 Women's World Cup in Canada of 1,353,506.
Fans in the US have been allocated 130,905 tickets, while 29,307 England fans have bought tickets to make the short journey over the English Channel to watch the Lionesses play.
After that, Netherlands fans were assigned 27,767 tickets, Sweden had 10,227 and Germany had 9,914.