Chattanooga, OK has a population of 457 and is the 20,098th largest city in the United States. The population density is 805 per sq mi which is 1374% higher than the Oklahoma average and 788% higher than the national average. The median age in Chattanooga is 32 which is approximately 12% lower than the Oklahoma average of 36. In Chattanooga, 61% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 69% of Chattanooga residents were born in Oklahoma, 30% were born out of state, 0% were born outside of the United States and 1% were foreign born.