Dewar, OK has a population of 898 and is the 15,809th largest city in the United States. The population density is 959 per sq mi which is 1657% higher than the Oklahoma average and 958% higher than the national average. The median age in Dewar is 34 which is approximately 7% lower than the Oklahoma average of 36. In Dewar, 61% of the population over 15 years of age are married, 96% speak English and 0% speak Spanish. 78% of Dewar residents were born in Oklahoma, 22% were born out of state, 0% were born outside of the United States and 0% were foreign born.