KCYY (100.3 FM) is a commercial radio station in San Antonio, Texas. It is owned by Cox Radio and airs a country music radio format. Studios and offices are on Datapoint Drive in San Antonio. KCYY has an effective radiated power (ERP) of 100,000 watts, the maximum for non-grandfathered FM stations. The transmitter site is on the McCarter Ranch, off Galm Road in the Far West Side of San Antonio, near Government Canyon State Natural Area.