Croswell is a city in Sanilac County in the U.S. state of Michigan.

[5] It is considered to be part of the Thumb of Michigan, which in turn is a subregion of the Flint/Tri-Cities.

Croswell can also be considered as in the Blue Water Area, a subregion of the Thumb.

27.9% of all households were made up of individuals, and 11.6% had someone living alone who was 65 years of age or older.

27.7% of all households were made up of individuals, and 13.3% had someone living alone who was 65 years of age or older.

Crops include corn, wheat, oats, soy beans, sugar beets, peas, and alfalfa (hay).

The most notable landmark in Croswell is the "Be Good to Your Mother-In-Law" footbridge, which runs across the Black River.

Croswell is also home to one of the last operating fixed 4-way traffic signal in the state of Michigan, located at the intersection of Howard Street and Sanborn Avenue.

Arnold Field is a public-use airport located two nautical miles (2.3 mi; 3.7 km) northeast of Croswell's central business district.