Alex is a town in Grady County, Oklahoma, United States. The population was 482 at the 2020 census. The town, now locally pronounced Elik, bears the name of an early settler, an intermarried Chickasaw, named William Vinson Alexander whose wife, Martha, served as the first postmistress, after the post office was established in Alexander's store in Decembeā¦Alex is a town in Grady County, Oklahoma, United States. The population was 482 at the 2020 census. The town, now locally pronounced Elik, bears the name of an early settler, an intermarried Chickasaw, named William Vinson Alexander whose wife, Martha, served as the first postmistress, after the post office was established in Alexander's store in December 1885. Alexander established the First State Bank on October 3, 1907.