Royal Oak, MI has a population of 58,823 and is the 670th largest city in the United States. The population density is 4,988 per sq mi which is 4846% higher than the Michigan average and 5406% higher than the national average. The median age in Royal Oak is 37 which is approximately 8% lower than the Michigan average of 40. In Royal Oak, 50% of the population over 15 years of age are married, 93% speak English and 1% speak Spanish. 76% of Royal Oak residents were born in Michigan, 16% were born out of state, 1% were born outside of the United States and 8% were foreign born.