Midwest City, OK has a population of 56,930 and is the 698th largest city in the United States. The population density is 2,333 per sq mi which is 4174% higher than the Oklahoma average and 2475% higher than the national average. The median age in Midwest City is 35 which is approximately 4% lower than the Oklahoma average of 36. In Midwest City, 51% of the population over 15 years of age are married, 95% speak English and 3% speak Spanish. 62% of Midwest City residents were born in Oklahoma, 33% were born out of state, 1% were born outside of the United States and 3% were foreign born.