Stonewall, OK has a population of 397 and is the 20,919th largest city in the United States. The population density is 1,209 per sq mi which is 1984% higher than the Oklahoma average and 1234% higher than the national average. The median age in Stonewall is 50 which is approximately 38% higher than the Oklahoma average of 36. In Stonewall, 59% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 63% of Stonewall residents were born in Oklahoma, 37% were born out of state, 0% were born outside of the United States and 0% were foreign born.