Enid, OK has a population of 50,891 and is the 802nd largest city in the United States. The population density is 688 per sq mi which is 1161% higher than the Oklahoma average and 660% higher than the national average. The median age in Enid is 35 which is approximately 4% lower than the Oklahoma average of 36. In Enid, 62% of the population over 15 years of age are married, 85% speak English and 10% speak Spanish. 57% of Enid residents were born in Oklahoma, 32% were born out of state, 2% were born outside of the United States and 9% were foreign born.