Weldon Spring

County:: St. Charles County
County Seat:: No
Area (mi²):: 7.647
State:: Missouri

Weldon Spring is a city located in St. Charles County, Missouri. Weldon Spring has a 2025 population of 5,217. Weldon Spring is currently declining at a rate of -0.44% annually and its population has decreased by -2.16% since the most recent census, which recorded a population of 5,332 in 2020.

The average household income in Weldon Spring is $202,410 with a poverty rate of 0.34%.The median age in Weldon Spring is 53.5 years: 52.3 years for males, and 55.2 years for females.

Demographics

The racial composition of Weldon Spring includes 92.38% White, 4.91% Asian, and smaller percentages for Two or more races, Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	4,888	92.38%
Asian	260	4.91%
Two or more races	80	1.51%
Black or African American	63	1.19%

Weldon Spring Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Weldon Spring's average per capita income is $108,090. Household income levels show a median of $155,081. The poverty rate stands at 0.34%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$194,531	-
Families	$190,486	$237,485
Households	$155,081	$202,410
Non Families	$56,250	$72,617

$108,090

Average Income

$155,081

Median Household Income

0.34%

Poverty Rate