What kinds of homes are in Weldon Spring, MO?

Name: Types of homes in Weldon Spring, MO, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Weldon Spring, MO has 2,199 (±167) homes (2020–2024 American Community Survey).

That is about 288 homes per square mile of land.

76.0% are detached single-family houses.

0.6% are in buildings of two to four units.

16.9% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 2,199 (±167)
Detached houses: 76.0%
2–4 unit buildings: 0.6%
5+ unit buildings: 16.9%

Homes in Weldon Spring by building size

Housing units by units in structure, 2020–2024
Building type	Weldon Spring	St. Charles County	Missouri	United States
Single-family, detached	76.0% (±6.8 points)	74.7%	70.5%	61.3%
Single-family, attached (townhouse, rowhouse)	6.5% (±4.8 points)	7.5%	3.7%	6.2%
2 units	0.0% (±1.6 points)	0.9%	3.2%	3.4%
3 or 4 units	0.6% (±1.0 points)	3.1%	4.6%	4.3%
5 to 9 units	3.9% (±4.1 points)	3.1%	3.6%	4.5%
10 to 19 units	1.2% (±1.9 points)	3.7%	3.4%	4.3%
20 or more units	11.8% (±4.1 points)	4.4%	5.8%	10.3%
Mobile home	0.0% (±1.6 points)	2.5%	5.2%	5.6%
Boat, RV, van, etc.	0.0% (±1.6 points)	0.0%	0.1%	0.1%

In Weldon Spring, the share of homes in buildings of five or more units is not measurably different from St. Charles County (11.2%).

It is not measurably different from Missouri (12.8%).

It is not measurably different from the national figure (19.1%).

Homes in buildings of 5 or more units in places near Weldon Spring

Nearest places with a published estimate, compared with Weldon Spring
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Weldon Spring	—	16.9% (±6.1 points)	—
Weldon Spring Heights	1.8 mi	0.0% (±83.3 points)	Not measurably different
Cottleville	2.9 mi	19.5% (±7.2 points)	Not measurably different
Dardenne Prairie	4.0 mi	1.4% (±1.2 points)	Lower
Chesterfield	5.4 mi	21.2% (±2.5 points)	Not measurably different
St. Peters	5.7 mi	12.2% (±1.9 points)	Not measurably different
O'Fallon	6.4 mi	10.2% (±1.2 points)	Lower
Clarkson Valley	6.6 mi	0.0% (±6.8 points)	Lower
Lake St. Louis	8.7 mi	18.7% (±4.1 points)	Not measurably different

Nearby places with a measurably lower figure: Dardenne Prairie, MO (1.4%), O'Fallon, MO (10.2%), Clarkson Valley, MO (0.0%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes in buildings of 5 or more units across St. Charles County, place by place

Rank	Place	Homes in buildings of 5 or more units
1	Flint Hill	29.3% (±25.6 points)
2	St. Charles	20.0% (±2.0 points)
3	Cottleville	19.5% (±7.2 points)
4	Josephville	19.0% (±30.6 points)
5	Lake St. Louis	18.7% (±4.1 points)
6	Weldon Spring	16.9% (±6.1 points)
7	St. Peters	12.2% (±1.9 points)
8	O'Fallon	10.2% (±1.2 points)
9	Wentzville	8.0% (±1.8 points)
10	Foristell	4.4% (±14.3 points)
11	St. Paul	3.1% (±5.8 points)
12	Dardenne Prairie	1.4% (±1.2 points)

Showing 12 of 17 places in St. Charles County, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Weldon Spring

How many homes are in Weldon Spring?

Weldon Spring, MO has an estimated 2,199 (±167) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Weldon Spring houses or apartments?

76.0% are detached houses and 6.5% attached houses, while 17.5% are in buildings of two or more units.

How many two-family and small multifamily homes are in Weldon Spring?

0.6% of homes in Weldon Spring are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Weldon Spring city, Missouri

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Weldon Spring city, Missouri (place:78314, in state:29).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.