Trader Joe’s is an American chain of grocery stores headquartered in Monrovia, California.By 2015, it was a competitor in “fresh format” grocery stores in the United States. By October 2017, Trader Joe’s had 474 stores nationwide in 43 states and Washington, D.C.. The first Trader Joe’s store was opened by founder Joe Coulombe in 1967 in Pasadena, California.

