- Oklahoma City is the capital and largest city of Oklahoma, housing about 685,000 people. It is known for its vibrant arts scene, bustling downtown, and the OKC Thunder NBA team.
- Tulsa is Oklahoma's second-largest city with about 405,000 inhabitants. Known as the "Oil Capital of the World", Tulsa has become a hub for finance, technology, and aerospace.
- Norman is home to about 128,000 residents and is renowned primarily as the home of the University of Oklahoma, one of the largest public universities in the United States.