Dearborn is a city in Wayne County in the U.S. state of Michigan. An inner-ring suburb of Detroit, Dearborn borders Detroit to the south and wes…Dearborn is a city in Wayne County in the U.S. state of Michigan. An inner-ring suburb of Detroit, Dearborn borders Detroit to the south and west, roughly 7 miles west of downtown Detroit. In the 2020 census, it had a population of 109,976, ranking as the seventh-most populous city in Michigan. Dearborn is best known as the hometown of the Ford Motor Company and of its founder, Henry Ford.