Allen Park is a city in Wayne County in the U.S. state of Michigan. As of the 2010 census, the population was 28,210. The suburb of Detroit was recognized in Money Magazine's list of America's Best Small Cities. Allen Park is part of the collection of communities known as Downriver Ford Motor Company is an integral part of the community. Many of the company's offices and facilities lie within the city limits. Since 2002, Allen Park is the practice home of the Detroit Lions and is also the site of the team's headquarters.