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Clarkson Valley, MO Profile: Facts & Data

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Clarkson Valley, Missouri - Basic Facts

The City of Clarkson Valley had a population of 2,536 as of July 1, 2025.

The primary coordinate point for Clarkson Valley is located at latitude 38.6184 and longitude -90.5893 in St. Louis County. The formal boundaries for the City of Clarkson Valley encompass a land area of 2.7 sq. miles and a water area of 0.05 sq. miles. St. Louis County is in the Central time zone (GMT -6).

The City of Clarkson Valley has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Clarkson Valley is located within Township of Chesterfield, a minor civil division (MCD) of St. Louis County.


Jump to... (On This Page!)
  1. Clarkson Valley 2025 Demographic Data
  2. Growth Rates for Clarkson Valley (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 - 2025 Demographics
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Clarkson Valley, MO Data & Demographics (As of July 1, 2025)

POPULATION

Total Population 2,536 (100%)
Population in Households 2,536 (100.0%)
Population in Families 2,442 (96.3%)
Population in Group Quarters1 0
Population Density 941
Diversity Index2 29
 
 

INCOME

Median Household Income $219,799
Average Household Income $324,580
% of Income for Mortgage4 20%
Per Capita Income $108,534
Wealth Index5 361
Socioeconomic Status Index6 High (75.1)
 

HOUSING

Total HU (Housing Units) 896 (100%)
Owner Occupied HU 833 (93.0%)
Renter Occupied HU 15 ( 1.7%)
Vacant Housing Units 48 ( 5.4%)
Median Home Value $704,313
Average Home Value $774,913
Housing Affordability Index3 112
 

HOUSEHOLDS

Total Households 848
Average Household Size 2.99
Family Households 768
Average Family Size 3.00
NOTES
  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.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

 2020-2025 2025-2030
Population -0.54% -0.20%
Households -0.33% -0.07%
Families   -0.45%
Median Household Income   2.34%
Per Capita Income   2.44%
Owner Occupied HU   0.02%

Clarkson Valley, MO - Peer Comparisons by Rank and Percentile

The table below compares Clarkson Valley to the other 1,082 incorporated cities, towns and CDPs in Missouri by rank and percentile using July 1, 2025 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 # 227 79th
Population Density # 359 67th
Median Household Income # 3 100th
Housing Affordability Index # 595 55th
Per Capita Income # 5 100th
Diversity Index # 280 74th

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

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