Tonkawa, OK has a population of 3,142 and is the 8,576th largest city in the United States. The population density is 585 per sq mi which is 971% higher than the Oklahoma average and 545% higher than the national average. The median age in Tonkawa is 35 which is approximately 2% lower than the Oklahoma average of 36. In Tonkawa, 54% of the population over 15 years of age are married, 93% speak English and 6% speak Spanish. 69% of Tonkawa residents were born in Oklahoma, 28% were born out of state, 0% were born outside of the United States and 3% were foreign born.