Hazel Park is a city in Oakland County in the U.S. state of Michigan. An inner-ring suburb of Detroit, Hazel Park borders Detroit to the north, r…Hazel Park is a city in Oakland County in the U.S. state of Michigan. An inner-ring suburb of Detroit, Hazel Park borders Detroit to the north, roughly 10 miles north of downtown Detroit. As of the 2020 census, the city had a population of 14,983.