The new census numbers are out and they show Oklahoma is continuing it's growth. As of July 1st last year, the population of Oklahoma is 4,053,824. That's up more than 34,000 from 2022, and more than 62,000 from the year before. Oklahoma City's population is 702,767, meaning OKC remains the 20th largest city in the US. Tulsa's population is 411,894, making them the 48th largest city in the country. The Tulsa suburbs of Owasso and Bixby had the biggest growth percentage-wise in the state.