Osage County (/ˈoʊseɪdʒ/ OH-sayj) is the largest county by area in the U.S. state of Oklahoma. Created in 1907 when Oklahoma was admitted as a state, the county is named for and is home to the federally recognized Osage Nation. The county is coextensive with the Osage Nation Reservation, established by treaty in the 19th century when the Osage relocated there from Kansas. The county seat is in Pawhuska, one of the first three towns established in the county. The total population of the county as of 2020 was 45,818.
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👉 Osage County, Oklahoma in the context of Tulsa metropolitan area
The Tulsa metropolitan area, officially defined as the Tulsa metropolitan statistical area is a metropolis in northeastern Oklahoma centered around the city of Tulsa and encompassing Tulsa, Rogers, Wagoner, Muskogee, Washington, Osage, Creek, Okmulgee and Pawnee counties. It had a population of 1,059,803 according to the 2024 U.S. census estimates.
In this Dossier
Osage County, Oklahoma in the context of Tulsa, Oklahoma
Tulsa (/ˈtʌlsə/ TUL-sə) is the second-most-populous city in the U.S. state of Oklahoma and the 48th-most populous city in the United States. The population was 413,066 as of the 2020 census. It is the principal municipality of the Tulsa metropolitan area, a region with 1.06 million residents. The city serves as the county seat of Tulsa County, the most densely populated county in Oklahoma, with urban development extending into Osage, Rogers and Wagoner counties.
Tulsa was settled between 1828 and 1836 by the Lochapoka band of Creek Native Americans, and was formally incorporated in 1898. Most of Tulsa is still part of the territory of the Muscogee (Creek) Nation. Northwest Tulsa lies in the Osage Nation whereas North Tulsa is within the Cherokee Nation.
Osage County, Oklahoma in the context of Bartlesville, Oklahoma
Bartlesville is a city in Washington County and Osage County, Oklahoma, United States. The population was 37,290 at the 2020 census. Bartlesville is 47 miles (76 km) north of Tulsa and 18 miles (29 km) south of the Kansas border. It is the county seat of Washington County. The Caney River runs through Bartlesville.
Bartlesville is the primary city of the Bartlesville Micropolitan area, which consists of Washington County and had a population of 51,843 in 2018. A small portion of the city is in Osage County. The city is also part of the Tulsa Combined Statistical Area, with a population of 1,151,172 in 2015.