Radium, on U.S. Highway 83 ten miles northwest of Anson in western Jones County, originated with J. M. Williford's store in 1910. The population was ten in 1915 and twenty in 1940. Proximity to Anson discouraged development.
Radium is a trading center for Thompson Creek ranchers and farmers.
The population of Radium was estimated at twenty-six in 1980 and 1990. The Texas State Historical Association, 1997,1998,1999.