WCOO (105.5 MHz) is a commercial FM radio station broadcasting an adult album alternative format.

The station is owned by Lynn Martin with studios on Windermere Boulevard in Charleston, west of the Ashley River.

The transmitter site is on McGrath Darby Boulevard in Mount Pleasant, co-located with the tower for WCBD-TV 2, Charleston's NBC Network affiliate.

[1] Originally, the call sign was WWMC, licensed to Moncks Corner and broadcasting at 3,000 watts.

Soon, WCOO made big ratings gains at the expense of long-time AC station 102.5 WXLY.