Muskegon is a city located in Muskegon County, Michigan. Muskegon has a 2026 population of 37,287. It is also the county seat of Muskegon County. Muskegon is currently growing at a rate of 0.32% annually and its population has increased by 0.2% since the most recent census, which recorded a population of 37,211 in 2020.