Romeo is a village in Macomb County in the U.S. state of Michigan. The population was 3,767 at the 2020 census. Romeo is located on the rural-urban fringe of the Detroit metropolitan area, and many of its residents commute to jobs closer to the city.

Macomb County is a county located in the eastern portion of the U.S. state of Michigan, bordering Lake St. Clair, and is part of northern Metro Detroit. As of the 2020 Census, the population was 881,217, making it the third-most populous county in the state. The county seat is Mt. Clemens. Macomb County is part of the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area. The city of Detroit is located on the county's southern border. Macomb County contains 27 cities, townships and villages, including three of the top ten most-populous municipalities in Michigan as of the 2020 census: Warren (#3), Sterling Heights (#4) and Clinton Township (#8). Most of this population is concentrated south of Hall Road (M-59), one of the county's main thoroughfares.