Missouri (USA) is 0.21% larger than Oklahoma (USA).
Missouri is a U.S. state located in the Midwestern United States. Missouri is the 21st most extensive and the 18th most populous of the 50 United States. Missouri comprises 114 counties and the independent city of St. Louis. The four largest urban areas are St. Wikipedia
Oklahoma is a state located in the South Central United States. Oklahoma is the 20th most extensive and the 28th most populous of the 50 United States. The state's name is derived from the Choctaw words okla and humma, meaning "red people". Wikipedia