WYAB serves what most populous county in Mississippi?
WYAB: WYAB 103.9 FM (formerly 93.1 FM) is a radio station serving the city of Jackson, Mississippi, including Madison County, Yazoo County, Rankin County, and Hinds County. Hinds County, Mississippi:  As of the 2010 census, the population was 245,285, making it the most populous county in Mississippi.
i don't know