The 2016 U.S. eCommerce market has become the second largest globally and is expected to reach a total of $482 billion by 2018.
Here are some quick statistics about the U.S. eCommerce market in general:
Mobile commerce in the U.S. continues to emerge, with $75 billion in online sales last year alone

Approximately 43% (and growing) of major retailers in the U.S. now offer a form of in-store pickup for eCommerce orders, with omni-channel options and infrastructures continually growing and improving

Thanksgiving sales comprise the biggest online shopping day of the year (Cyber Monday), with double digit growth projected for the next five years

Credit and debit cards are used for 73% of U.S. online transactions, with digital payments (16%) increasing in popularity