Osage County, Oklahoma, USA - 2,304 square miles.
As of the 2010 census, the population of Osage County, Oklahoma was 47,472.
Oklahoma is 68667 square miles
Oklahoma has an area of 69,898 square miles.
Oklahoma City has a total area of 620.34 square miles.
There are 2,569 square miles in Lincoln County, Nevada.
The smallest county in Texas is Rockwall County, which is about 147 square miles in size.
Marquette County, Michigan is 3,425 square miles.
Darlington County, SC is 567 square miles.
Onondaga County, NY is 806 square miles.
Tillamook County, Oregon is 1,133 square miles.
Hennepin County, Minnesota is 606 square miles.