Saint Louis, MI Profile: Facts & Data


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Saint Louis, Michigan - Basic Facts

The City of Saint Louis had a population of 7,220 as of July 1, 2018. Saint Louis ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Michigan. See peer rankings below.

The primary coordinate point for Saint Louis is located at latitude 43.4085 and longitude -84.6112 in Gratiot County. The formal boundaries for the City of Saint Louis (see map below) encompass a land area of 3.34 sq. miles and a water area of 0.19 sq. miles. Gratiot County is in the Eastern time zone (GMT -5). The elevation is 732 feet.

The City of Saint Louis (GNIS ID: 1627033) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

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  1. Saint Louis 2018 Demographic Data
  2. Growth Rates for Saint Louis (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Michigan Research Tools (Easy Tools & Current Data)
  3. Michigan Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Saint Louis, MI Data & Demographics (As of July 1, 2018)


Total Population 7,220
Population in Households 3,773
Population in Familes 2,901
Population in Group Qrtrs 3,447
Population Density2 2,160
Diversity Index3 52


Median Household Income $37,041
Average Household Income $51,280
Per Capita Income $13,208


Total Housing Units 1,625 (100%)
Owner Occupied HU 973 (59.9%)
Renter Occupied HU 506 (31.1%)
Vacant Housing Units 147 ( 9.0%)
Median Home Value $78,756
Average Home Value $87,925


Total Households 1,478
Average Household Size 2.55
Family Households 914
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2018 2018-2023
Population -0.43% -0.12%
Households -0.11% -0.19%
Families -0.3% -0.33%
Median Household Income   3.74%
Per Capita Income   2.71%

Saint Louis, MI - Peer Comparisons by Rank and Percentile

The table below compares Saint Louis to the other 692 incorporated cities, towns and CDPs in Michigan by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 140 80th
Population Density # 123 82nd
Diversity Index # 55 92nd
Median Household Income # 594 14th
Per Capita Income # 688 1st

Additional comparisons and rankings can be made with a VERY EASY TO USE Michigan Census Data Comparison Tool.

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