This state is located in the South Central region of
the United States of America. Oklahoma is the 20th most extensive and the 28th most populous of the 50 United States (population of Oklahoma is about 3450000 people. Its residents are known as Oklahomans or, informally "Okies", and its capital and largest city is Oklahoma City.Did you know?
The name Oklahoma came from words okla and humma that mean "red people"