About 139,000 people.

Warren is a large city just north of Detroit and is an important place for building cars and doing science and engineering. Many families live here because it is close to jobs and good parks.
You can splash at the Warren community center, walk the trails along the Red Run, and visit the many green parks. There are also fun car shows during the summer.
Big engineers in Warren design and test new cars and trucks, including electric ones. It is one of the most important places in the country for planning the vehicles of the future.
Warren has dozens of parks with playgrounds, ball fields, and shady paths for biking and walking. Families gather for picnics and festivals when the weather is warm.