is a city in Rogers and Tulsa counties in the U.S. state of Oklahoma, and a northern suburb of Tulsa. The population was 18,502 at the 2000 census. Since 2000 the population has grown to 35,703.
Owasso is located at (36.290373, -95.828640). According to the United States Census Bureau, the city has a total area a of 10.1 square miles (26.0 km²).99.9% of it is land and 0.10% is water.