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is a city in Kay and Osage counties in the U.S. state of Oklahoma named after the Ponca Tribe (Pánka iyé:
). Located in north central Oklahoma, it lies south of the Kansas border and east of Interstate 35. The population was 25,919 at the 2000 census, making it the largest city in Kay County. The city is near the Salt Fork of the Arkansas River and Kaw Lake which provide recreational opportunities. Ponca City is served by Ponca City Regional Airport.
According to the United States Census Bureau, the city has a total area of 19.3 square miles (50.0 km²), of which, 18.1 square miles (46.9 km²) of it is land and 1.2 square miles (3.1 km²) of it (6.26%) is water.