Yoakum County is a county located in the far western portion of the U.S. state of Texas. As of the 2020 census, the population was 7,694. Its county seat is Plains. The county was created in 1876 and later organized in 1907. It is named for Henderson King Yoakum, a Texas historian.

Plains is a town and the county seat of Yoakum County of western Texas, United States, particularly the south (inner) half of the panhandle's plains. The city's population was 1,355 at the 2020 census. Plains is in the Texas High Plains Wine country.