In 1947, both were purchased by the longtime resident John Holliday Perry Sr., who owned a Florida newspaper chain of six dailies and 15 weeklies.

In June 1969, Cox Enterprises, based in Atlanta, purchased Perry's Palm Beach and West Palm Beach publications and formed Palm Beach Newspapers, Inc. Cox was founded by James M. Cox, a former Ohio governor and the 1920 Democratic presidential candidate who built a media company that today includes daily newspapers; weekly newspapers, radio and television stations; U.S. cable TV systems, local Internet media sites; and Mannheim auto auction locations.

The Palm Beach Post photographer Dallas Kinney won the 1970 Pulitzer Prize for Feature Photography for his portfolio of pictures of Florida migrant workers, Migration to Misery.

[3] The paper became nationally recognized for its coverage of the 2000 presidential election for reporting about flawed ballots occurring in Palm Beach County.

[4] In 2003, The Palm Beach Post won an American Society of Newspaper Editors (ASNE) prize for their coverage on a local bishop's resignation following confirmed sexual abuse allegations.

Faced with economic downturn and a changing industry, The Post reduced its payroll of 1,350 to about 1,000 and closed bureaus in Stuart, Port St. Lucie and Delray Beach.