Royal Oak is a city in Oakland County in the U.S. state of Michigan. As of the 2010 census, the city had a population of 57,236.
The city is located along the Woodward Corridor, and Interstate 75 and Interstate 696 also pass through Royal Oak. As a northern suburb of Metro Detroit, the city is about 3 miles north of the city of Detroit. Portions of the Detroit Zoo are within Royal Oak, extending into neighboring Huntington Woods.