A Look at US Amazon Prime Membership Over the Past 12 years

We marvel at the growth in US Amazon Prime membership, as we’ve followed it for over a decade. 

CIRP started measuring Amazon Prime membership toward the end of 2013, about eight years after Amazon introduced the program. We estimated there were 17 million US members at that point. For the next few years, growth rates averaged about 50% per year, and membership quintupled to 90 million in just four years (Chart 1).