Saint Louis, MO Profile: Facts, Map & Data


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Saint Louis, Missouri - Basic Facts

The City of Saint Louis is the 2nd largest city in Missouri with a population of 316,262 as of July 1, 2017. 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 Missouri. See peer rankings below.

The primary coordinate point for Saint Louis is located at latitude 38.6357 and longitude -90.2446 in St. Louis (city) County. The formal boundaries for the City of Saint Louis (see map below) encompass a land area of 61.95 sq. miles and a water area of 4.12 sq. miles. St. Louis (city) County is in the Central time zone (GMT -6). The elevation is 466 feet.

The City of Saint Louis (GNIS ID: 767557) has a C7 Census Class Code which indicates an incorporated place that is independent of any county. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with Saint Louis population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Saint Louis: City of Saint Louis, Lacledes Village, Mound City, Pain Court, Pancore, Saint Lewis, Saint Louis City.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Saint Louis, MO Boundary Map

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Saint Louis, MO Data & Demographics (As of July 1, 2017)


Total Population 316,262
Population in Households 304,304
Population in Familes 202,157
Population in Group Qrtrs 11,958
Population Density1 5,105
Diversity Index2 61


Total Households 141,003
Average Household Size 2.16
Family Households 65,844
Average Family Size 3


Total Housing Units 178,155 (100%)
Owner Occupied HU 59,915 (33.6%)
Renter Occupied HU 81,088 (45.5%)
Vacant Housing Units 37,152 (20.9%)
Median Home Value $134,973
Average Home Value $171,782


Median Household Income $37,980
Average Household Income $56,309
Per Capita Income $25,649
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.13% -0.25%
Households -0.1% -0.24%
Families -0.34% -0.4%
Median Household Income   2.56%
Per Capita Income   3.23%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Saint Louis, MO - Peer Comparisons by Rank and Percentile

The table below compares Saint Louis to the other 1,032 incorporated cities, towns and CDPs in Missouri by rank and percentile using July 1, 2017 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 # 2 100th
Population Density1 # 25 98th
Diversity Index2 # 20 98th
Median Household Income # 692 33rd
Per Capita Income # 301 71st

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

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