While the majority of the station's focus is on Long Island (predominantly Nassau and Western Suffolk), it also provides city-grade coverage to the eastern portion of New York City--specifically, Queens and eastern Brooklyn. It provides grade B coverage to most of the rest of New York City, though in some parts in interferes with similarly-formatted station WMGQ of New Brunswick, New Jersey, owned by Greater Media and also on 98.3.
Along with WBZO, WHLI, and WIGX, WKJY was purchased by Connoisseur from Barnstable Broadcasting for $23 million in 2012.
Local competitors with the same format and similar playlists in the New York Metro area include WLTW, 106.7 Lite FM, as well as hot adult contemporary stations WPLJ & WWFS. By 2012, WKJY became one of two Mainstream AC stations transmitting to Long Island following rival WALK-FM's shift to adult top 40. (The other is WBAZ 102.5, although the two have vastly different signal coverage).
Previously known as "K-Joy 98.3," the station changed its branding to the current "K 98.3" in July 2013. This might have something to do with the station known as KJOY in Stockton, California.