St. Louis

County:: Gratiot County
County Seat:: No
Area (mi²):: 3.315
State:: Michigan

St. Louis is a city located in Gratiot County, Michigan. St. Louis has a 2025 population of 7,012. St. Louis is currently growing at a rate of 0.03% annually and its population has increased by 0.16% since the most recent census, which recorded a population of 7,001 in 2020.

The average household income in St. Louis is $60,041 with a poverty rate of 15.37%. The median age in St. Louis is 38.8 years: 39.4 years for males, and 35.7 years for females.

Demographics

The racial composition of St. Louis includes 64.65% White, 25.5% Black or African American, and smaller percentages for other race, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Other race

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	4,478	64.65%
Black or African American	1,766	25.5%
Two or more races	498	7.19%
Other race	123	1.78%
Native American	37	0.53%
Asian	24	0.35%
Native Hawaiian or Pacific Islander	0	0%

St. Louis Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Louis' average per capita income is $35,179. Household income levels show a median of $46,096. The poverty rate stands at 15.37%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$75,917	-
Families	$57,708	$73,482
Households	$46,096	$60,041
Non Families	$29,792	$34,303

$35,179

Average Income

$46,096

Median Household Income

15.37%

Poverty Rate