What are the biggest retailers in the United States?

FILE - This May 28, 2013 file photo shows a sign outside a Wal-mart store in Duarte, Calif. Wal-Mart will stop selling the AR-15 rifle and other semi-automatic weapons at its stores because fewer people are buying them, a spokesman said Wednesday, Aug. 26, 2015. (AP Photo/Damian Dovarganes, File) FILE - This May 28, 2013 file photo shows a sign outside a Wal-mart store in Duarte, Calif. Wal-Mart will stop selling the AR-15 rifle and other semi-automatic weapons at its stores because fewer people are buying them, a spokesman said Wednesday, Aug. 26, 2015. (AP Photo/Damian Dovarganes, File)

By Staff Report October 20, 2015 1 min read

This Monday, Nov. 17, 2014 photo shows a Home Depot store is shown in Hialeah, Fla. Home Depot reports quarterly financial results before the market opens Tuesday, Feb. 24, 2015. (AP Photo/Wilfredo Lee)

The National Retail Federation lists the biggest retailers, based on 2014 sales, as:

1. Wal-Mart Stores, based in Bentonville, Ark., – global sales of $508.5 billion

2. Costco, based in Issaquah, Wash., – global sales of $111.5 billion

3. Kroger Co., based in Cincinnati, – $103 billion in U.S. sales

4. Amazon.com, based in Seattle, – global sales of $83.4 billion