Tulsa County, Oklahoma, USA

Tulsa County occupies a stretch of northeastern Oklahoma centered on the city of Tulsa and crossed by the Arkansas River. Its landscape shifts from urban neighborhoods and industrial corridors to wooded hills, prairie and growing suburban communities such as Broken Arrow, Bixby, Jenks and Owasso. The county was created at Oklahoma statehood in 1907 in a region shaped by the Muscogee, Cherokee and Osage nations and later transformed by the oil boom. Tulsa County had about 698,800 residents in 2025. Energy, aerospace, manufacturing, health care, finance, logistics, technology, education and tourism underpin the metropolitan economy.