Yoakum County is one of the 254 counties of the US state of Texas. The county seat is Plains, as is its largest city. The county has an area of 2,071 km² and a population of 7,322 inhabitants, for a population density of 4 hab / km². This county was founded in 1876. It is one of the 46 counties in Texas that prohibits the sale of alcoholic beverages.