What is the rental vacancy rate in Lake St. Louis, MO?

Name: Vacancy rate in Lake St. Louis, MO, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

The rental vacancy rate in Lake St. Louis, MO is 11.9% (±8.8 points) (2020–2024 American Community Survey).

The homeowner vacancy rate is 0.3% (±0.5 points).

306 (±181) homes, 4.0% of all housing units, were vacant, a count that includes seasonal homes and homes being sold or rented.

In Lake St. Louis, the rental vacancy rate went from 10.6% in 2015–2019 to 11.9% in 2020–2024 (+1.3 percentage points), not a measurable change.

Figures last updated on November 12, 2026.

Rental vacancy rate: 11.9% (±8.8 points)
Homeowner vacancy rate: 0.3% (±0.5 points)
Vacant homes: 306 (±181)

Vacancy in Lake St. Louis against St. Charles County, its state and the nation

Estimate (90% margin of error)
	Lake St. Louis	St. Charles County	Missouri	United States
Rental vacancy rate	11.9% (±8.8 points)	6.2% (±1.3 points)	5.0% (±0.2 points)	5.5%
Homeowner vacancy rate	0.3% (±0.5 points)	0.3% (±0.2 points)	0.9% (±0.1 points)	0.9%
Vacant housing units	306 (±181)	5,852 (±687)	317,060 (±6,399)	14,547,859

The rental vacancy rate is the share of rental homes that are vacant and for rent; it leaves out homes already rented but not yet moved into, and seasonal homes.

In Lake St. Louis, the rental vacancy rate is not measurably different from St. Charles County (6.2%).

It is not measurably different from Missouri (5.0%).

It is not measurably different from the national figure (5.5%).

Rental vacancy rate in places near Lake St. Louis

Nearest places with a published estimate, compared with Lake St. Louis
Place	Distance	Rental vacancy rate	Compared with this place
Lake St. Louis	—	11.9% (±8.8 points)	—
Josephville	3.5 mi	9.8% (±24.3 points)	Not measurably different
O'Fallon	3.5 mi	1.5% (±1.3 points)	Lower
Dardenne Prairie	4.6 mi	0.0% (±8.5 points)	Not measurably different
Wentzville	5.2 mi	4.1% (±3.1 points)	Not measurably different
St. Paul	5.3 mi	0.0% (±79.5 points)	Not measurably different
New Melle	6.7 mi	0.0% (±82.3 points)	Not measurably different
Cottleville	7.2 mi	12.1% (±18.0 points)	Not measurably different
Flint Hill	7.3 mi	41.6% (±44.8 points)	Not measurably different

Nearby places with a measurably lower figure: O'Fallon, MO (1.5%).

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

Rental vacancy rate across St. Charles County, place by place

Rank	Place	Rental vacancy rate
1	Flint Hill	41.6% (±44.8 points)
2	Weldon Spring	14.6% (±19.4 points)
3	Cottleville	12.1% (±18.0 points)
4	Lake St. Louis	11.9% (±8.8 points)
5	Josephville	9.8% (±24.3 points)
6	St. Peters	9.1% (±3.8 points)
7	St. Charles	6.8% (±2.6 points)
8	Wentzville	4.1% (±3.1 points)
9	O'Fallon	1.5% (±1.3 points)
10 (tie)	Augusta	0.0% (±85.4 points)

Showing 10 of 16 places in St. Charles County, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.

Margins of error are at the 90% confidence level.

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Questions about Lake St. Louis

Is it hard to find a rental in Lake St. Louis?

The rental vacancy rate in Lake St. Louis, MO is 11.9% (±8.8 points); a low rate means few rental homes stand empty and for rent at any time, which usually means more competition for each one.

Is the rental market in Lake St. Louis tighter than it was?

In Lake St. Louis, the rental vacancy rate went from 10.6% in 2015–2019 to 11.9% in 2020–2024 (+1.3 percentage points), not a measurable change.

How many homes are vacant in Lake St. Louis?

An estimated 306 (±181) housing units, 4.0% of the total, including seasonal homes and homes waiting to be sold or rented.

Sources

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 Lake St. Louis city, Missouri (place:40043, in state:29).

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

The 2015–2019 figures are DP04_0005E, DP04_0005M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP04_0005E, DP04_0005M, DP04_0004E, DP04_0004M, DP04_0003E, DP04_0003M, DP04_0003PE, DP04_0003PM

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.