Ponca City, OK has a population of 24,753 and is the 1,758th largest city in the United States. The population density is 1,346 per sq mi which is 2367% higher than the Oklahoma average and 1386% higher than the national average. The median age in Ponca City is 37 which is approximately 1% higher than the Oklahoma average of 36. In Ponca City, 56% of the population over 15 years of age are married, 95% speak English and 4% speak Spanish. 67% of Ponca City residents were born in Oklahoma, 30% were born out of state, 0% were born outside of the United States and 3% were foreign born.