Weldon Spring Heights, Missouri Demographics & Population 2026

A note before these figures: with a population of 121, Weldon Spring Heights's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Weldon Spring Heights is a small community located in Missouri, within St. Charles County. The total population is 121. It ranks as the 832nd most populous out of 1,062 Census-designated places in Missouri.

Age Demographics

The median age in Weldon Spring Heights is 41.3 years. This is 6% higher than the state median of 39.0 years. 14.9% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Weldon Spring Heights is $143,750. This is 103% higher than the state median of $70,702. It is also 78% higher than the national median of $80,734. The poverty rate stands at 1.7%. This is 87% lower than the state poverty rate of 12.6%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 4.0%. The median home value is $447,500. Housing costs are 94% higher than the state median of $230,300. The home-value-to-income ratio is 3.1x. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 47% higher than the state average of 68.1%.

Race & Ethnicity

Weldon Spring Heights has a predominantly White (non-Hispanic) population, comprising 90.1% of all residents. Asian residents account for 1.7%.

Education

58.8% of residents aged 25 and older hold a bachelor's degree or higher. This places Weldon Spring Heights in the top 10% of all cities in the state for educational attainment. This is 82% higher than the state rate of 32.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.8%. Notably, 21.2% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Weldon Spring Heights, Missouri is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Missouri state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,062 Census-designated places in Missouri. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.