KKDV is an Adult Contemporary radio station located in Walnut Creek, California, broadcasting at 92.1 MHz. With the call letters KKDV (Diablo Valley), it broadcasts under the slogan "Diablo Valley's Hometown Station." The station is located in central Contra Costa County in the Diablo Valley close to Mt. Diablo.KKDV is owned by Contra Costa County Radio, Inc.