In 1946, the station signed on at 98.9 MHz as WSNJ-FM in Bridgeton, New Jersey, a farming community about 35 miles south of Philadelphia.

In the early 1960s, it became an affiliate of the WQXR Classical Network, During hourly news, based in New York City.

[5] In February of 2004, the station's frequency and city of license were changed to allow it to move into the more lucrative Philadelphia market.

Radio One paid $35 million for the "move-in" FM station, which was now able to attract Philadelphia listeners and advertisers.

)[10] On December 10, 2018, WPPZ flipped to urban oldies branded as "Classix 107.9"; the "Praise" programming was moved to the HD2 subchannel.