Thelma is an unincorporated community in Johnson County, Kentucky, United States. The community was originally known as Buskirk, after a local family. But, when the community received its first post office on June 5, 1905, it was renamed Thelma after the daughter of Warren Meek. Meek was a successful pioneer in the newspaper field in the Big Sandy Valley. Thelma's ZIP code is 41260. Thelma is located at an elevation of 636 feet.