[2][4] Joy Morton started working for E. I. Wheeler in 1880, buying into the company for $10,000,[a] with which he bought a fleet of lake boats to move salt west.

Morton received the company's consumer chemical products divisions, while Thiokol retained only the space propulsion systems concern.

[16] On April 30, 2021, K+S Aktiengesellschaft sold its North and South American business units, including Morton Salt, to Stone Canyon Industry Holdings, Mark Demetree and affiliates for $3.2 billion.

[17] The Morton Salt Company's current headquarters office is in the River Point building at 444 West Lake Street in Chicago, becoming its first tenant in December 2016.

Prior to its acquisition in 1999, the firm's corporate headquarters was at 100 North Riverside Plaza (later the headquarters of Boeing) and before that at 110 North Wacker Drive and 208 West Washington Street[18] Morton operates a research & development laboratory in Elgin, Illinois, and produces salt at eight vacuum evaporation plants, six underground mines, five solar evaporation plants, and five packaging facilities across the United States, Canada, and The Bahamas.

[20] The company's logo and its motto, "When it rains, it pours", both originating in a 1914 advertising campaign, were developed to illustrate the point that Morton Salt was free flowing even in rainy weather.

[25] In 2005, the Morton Salt Girl was shown in MasterCard's "Icons" commercial during Super Bowl XXXIX, which depicts several advertising mascots having dinner together.

[22][27] Also in 2014, the Morton Salt Girl was voted into the Advertising Week Walk of Fame on Madison Avenue in New York City; it is the first icon featuring a woman to be inducted.

[28] In the 1989 Cheers episode "Feeble Attraction", Norm was planning to finally fire Doris, who he hired as a secretary for his failing painting company.

In the 2011 episode "The Fight" of the television series Parks and Recreation, Morton Salt is one of three products publicly endorsed by the character Ron Swanson (Nick Offerman).