In the United States, in 2017,
Amazon.com sold $2 billion worth of groceries online. It had the largest market share, 18%, followed by
Walmart. Amazon acquired
Whole Foods Market to help accelerate growth efforts in the online grocery sector. Other companies with substantial market share in the US are
Target and
Instacart. The value of the US online grocery market grew from $12 billion in 2016 to $26 billion in 2018 and it has plenty of room to grow, given that the size of the overall grocery market was $632 billion in 2018 according to IBISWorld. Online grocery shopping grew substantially during the
COVID-19 pandemic. The
COVID-19 pandemic greatly accelerated the growth of online grocers, and in the first few months of the pandemic, online grocery shopping increased by 300%. In addition, first-time online grocery shoppers accounted for 41% of online grocery shoppers. COVID-19 hastened the uptake of online grocery shopping. Pre-COVID-19 food shopping activity accounted for 9% of the market, but 63 percent of consumers worldwide purchased more groceries online after the outbreak than they did before they were socially isolated. In the United States in 2022, 47% of people used online grocers, including 2% of people who used online grocers as their exclusive grocery provider. The market size in the U.S. in 2022 was $42.8 billion.
Walmart was the largest online grocer in the US that year with 27.6% of market share, followed by
Amazon.com /
Whole Foods Market at 21% and
Kroger at 10%. ==Impact on the environment==