St. Louis (city) County MO Information


St. Louis (city) County Subdivisions

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

St. Louis (city) County MO Data & Demographics (As of July 1, 2018)


Total Population 315,271
Population in Households 303,400
Population in Familes 200,568
Population in Group Qrtrs 11,871
Population Density2 5,093
Diversity Index3 61


Median Household Income $40,110
Average Household Income $59,033
Per Capita Income $26,873


Total Housing Units 176,002 (100%)
Owner Occupied HU 60,669 (34.5%)
Renter Occupied HU 79,950 (45.4%)
Vacant Housing Units 35,383 (20.1%)
Median Home Value $138,965
Average Home Value $180,032


Total Households 140,619
Average Household Size 2.16
Family Households 65,736
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 -0.15% -0.37%
Households -0.12% -0.36%
Families -0.32% -0.5%
Median Household Income   3.8%
Per Capita Income   3.53%


St. Louis (city) County MO - Peer Comparisons by Rank and Percentile

The table below compares St. Louis (city) County to the other 115 counties and county equivalents in Missouri 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 # 4 97th
Population Density # 1 100th
Diversity Index # 1 100th
Median Household Income # 75 36th
Per Capita Income # 21 83rd

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

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Missouri Census Data Comparison Tool

Compare Missouri July 1, 2018 Data
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