Royal Oak is a city in Oakland County, Michigan. It is a suburb of Detroit. As of the 2010 census, the city had a population of 57,236. It is the 8th-largest municipality in Oakland County and the 27th largest municipality in Michigan by population. 5.3 miles of walkable downtown sidewalks. Over 85 boutiques, salons and retail shops. 750 outdoor seats at over 70 restaurants. Must-see events and venues.That’s what makes Royal Oak, well, Royal Oak. A meeting place, a see and be seen place.