WACO-FM (99.9 MHz, "WACO 100") is a commercial FM radio station in Waco, Texas. It airs a country music radio format and is owned by iHeartMedia, Inc. The studios and offices are located on West Highway 6 in Southwest Waco. The transmitter is off Tower Drive in McLennan County in the community of Moody, amid towers for other local FM and TV stations.