Weldon Spring, MO Profile: Facts & Data


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Weldon Spring, Missouri - Basic Facts

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The City of Weldon Spring had a population of 5,611 as of July 1, 2022.

The primary coordinate point for Weldon Spring is located at latitude 38.7134 and longitude -90.6893 in St. Charles County. The formal boundaries for the City of Weldon Spring encompass a land area of 7.62 sq. miles and a water area of 0.13 sq. miles. St. Charles County is in the Central time zone (GMT -6). The elevation is 541 feet.

The City of Weldon Spring 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 Weldon Spring is located within Township of Weldon Spring, a minor civil division (MCD) of St. Charles County.

Alternate Unofficial Names for Weldon Spring: Weldon Springs.

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  1. Weldon Spring 2022 Demographic Data
  2. Growth Rates for Weldon Spring (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

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


Total Population 5,611 (100%)
Population in Households 5,553 (99.0%)
Population in Families 4,934 (87.9%)
Population in Group Quarters1 58 ( 1.0%)
Population Density 734
Diversity Index2 21


Median Household Income $134,805
Average Household Income $198,263
% of Income for Mortgage4 16%
Per Capita Income $77,140
Wealth Index5 253


Total HU (Housing Units) 2,449 (100%)
Owner Occupied HU 1,949 (79.6%)
Renter Occupied HU 289 (11.8%)
Vacant Housing Units 211 ( 8.6%)
Median Home Value $417,179
Average Home Value $459,210
Housing Affordability Index3 160


Total Households 2,238
Average Household Size 2.48
Family Households 1,705
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 2.34% 0.28%
Households 3.15% 0.40%
Families   0.41%
Median Household Income   2.28%
Per Capita Income   2.09%
Owner Occupied HU   0.56%

Weldon Spring, MO - Peer Comparisons by Rank and Percentile

The table below compares Weldon Spring 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 # 133 88th
Population Density # 496 54th
Median Household Income # 14 99th
Housing Affordability Index # 498 46th
Per Capita Income # 14 99th
Diversity Index # 484 55th

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

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