The estimate of U.S. retail e-commerce sales for the third quarter of 2019 totaled $145.7
billion, an increase of 4.4 percent (±0.4%) from the second quarter of 2019. The third quarter 2019 e-commerce estimate increased 17.3 percent (±1.4%) from the third quarter of 2018 while total retail sales increased 4.4 percent (±0.4%) in the same period.
In 2018, U.S. online retail sales of physical goods amounted to 501 billion US dollars and are projected to surpass 740 billion US dollars in 2023.
Amazon is by far the most popular e-retailer in the United States. The company also ranks ahead of the pack in terms of U.S. e-retail sales – in 2018, the company generated over 235 billion U.S. dollars via retail e-commerce sales in the United States. Amazon also has the most popular mobile shopping apps in the country in terms of reach and monthly users.
Online sales still represent only a small share of all retail sales in the U.S. – about 9.6 percent as of the third quarter of 2018.
Other successful online retailers include eBay – which was ranked as the most popular online marketplace by online sellers in the United States – Wal-Mart, Apple Sites and Target.