Louis is a city located in Gratiot County, in the state of Michigan (MI), United States. Nestled in the East North Central division of the Midwest region, it covers an area of 2.9 square miles (7.0 km²) and sits at an elevation of 730 ft. With a population of approximately 4,494 residents, Louis offers a peaceful, rural atmosphere.
The town's population is composed of about 58.77% males and 41.23% females, and it has a population density of 565.85 people per square mile (604.58/km²). Louis lies at a latitude of 43.41 and a longitude of -84.61, operating in the UTC-5.
Locals reflect a blend of American ancestry, with roots primarily in United States (9.1%), followed by English (11.4%), German (18.9%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 48880.