ZIP Code 48397

About Warren

Warren is a city in Macomb County, Michigan, United States. An inner-ring suburb of Detroit, Warren borders Detroit to the north, roughly 13 miles (20.9 km) north of downtown Detroit. The population was 139,387 at the 2020 census, making Warren the largest community in Macomb County, the third-largest city in Michigan, and Detroit's largest suburb.

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