Mehlville, MO Profile: Facts & Data


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Mehlville, Missouri - Basic Facts

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The Mehlville CDP(1) had a population of 28,468 as of July 1, 2022. Mehlville 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 Mehlville is located at latitude 38.5084 and longitude -90.3229 in St. Louis County. The formal boundaries for the Mehlville Census Designated Place encompass a land area of 7.45 sq. miles and a water area of 0.14 sq. miles. St. Louis County is in the Central time zone (GMT -6). The elevation is 607 feet.

The Mehlville Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Mehlville Census Designated Place is located within Township of Lemay, a minor civil division (MCD) of St. Louis County.

  1. A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

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  1. Mehlville 2022 Demographic Data
  2. Growth Rates for Mehlville (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 - 2022 Demographics

Mehlville, MO Data & Demographics (As of July 1, 2022)


Total Population 28,468 (100%)
Population in Households 28,202 (99.1%)
Population in Families 21,118 (74.2%)
Population in Group Quarters1 266 ( 0.9%)
Population Density 3,810
Diversity Index2 34


Median Household Income $64,336
Average Household Income $85,651
% of Income for Mortgage4 17%
Per Capita Income $39,491
Wealth Index5 76


Total HU (Housing Units) 13,785 (100%)
Owner Occupied HU 8,859 (64.3%)
Renter Occupied HU 4,348 (31.5%)
Vacant Housing Units 578 ( 4.2%)
Median Home Value $212,211
Average Home Value $260,932
Housing Affordability Index3 134


Total Households 13,207
Average Household Size 2.14
Family Households 7,492
Average Family Size 3.00
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2020-2022 2022-2027
Population -0.75% -0.28%
Households -0.21% -0.21%
Families   -0.26%
Median Household Income   3.82%
Per Capita Income   3.54%
Owner Occupied HU   0.08%

Mehlville, MO - Peer Comparisons by Rank and Percentile

The table below compares Mehlville to the other 1,082 incorporated cities, towns and CDPs in Missouri by rank and percentile using July 1, 2022 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 # 26 98th
Population Density # 44 96th
Median Household Income # 326 70th
Housing Affordability Index # 370 34th
Per Capita Income # 155 86th
Diversity Index # 194 82nd

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

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