Housing data for Lake St. Louis, MO
Lake St. Louis, MO has an estimated 18,066 residents and 7,657 homes (US Census Bureau, 2020–2024 American Community Survey).
It is a city in St. Charles County.
24.4% of households rent.
The median gross rent is $1,588 a month.
Its population grew measurably since 2015–2019 (+13.0%).
Figures last updated on .
- Residents
- 18,066 (±32)
- Housing units
- 7,657 (±323)
- Households that rent
- 24.4%
- Median gross rent
- $1,588
- Residents since 2015–2019
- +13.0%
What stands out in Lake St. Louis
Homes in buildings of 5 or more units: 18.7% (±4.1 points) in Lake St. Louis, higher than in St. Charles County (11.2%).
Median home value: $405,900 (±$24,017) in Lake St. Louis, higher than in St. Charles County ($320,800).
Median real estate taxes: $4,448 (±$272) in Lake St. Louis, higher than in St. Charles County ($3,480).
Households that moved in since 2020: 30.1% (±4.6 points) in Lake St. Louis, higher than in St. Charles County (21.9%).
- Types of homes in Lake St. Louis
- Home values in Lake St. Louis
- Property taxes in Lake St. Louis
- How long people stay in Lake St. Louis
Housing in Lake St. Louis at a glance
- Median rent: $1,588 median gross rent a month
- Rent by bedrooms: $1,604 median gross rent, 2 bedrooms
- Rent burden: 32.5% of renters pay 30% or more of income
- Renters and owners: 24.4% of households rent
- Income and affordability: $125,693 median household income
- Home values: $405,900 median home value
- Homeowner costs: $2,225 median monthly cost with a mortgage
- Property taxes: $4,448 median real estate taxes a year
- Types of homes: 18.7% of homes are in buildings of 5 or more units
- Bedrooms: 66.3% of homes have 3 or more bedrooms
- Age of homes: 19.4% of homes were built before 1980
- Vacancy rate: 11.9% rental vacancy rate
- Heating fuel: 63.4% heat with utility gas
- Commute and cars: 25.6 minutes average trip to work
- Crime reported to police: 106 violent crimes per 100,000 residents
- Growth: +13.0% residents since 2015–2019
- How long people stay: 30.1% moved in since 2020
- Crowding and facilities: 0.3% of homes have more than 1 person per room
- Fair Market Rent: $1,900 Small Area FMR, 2 bedrooms (ZIP 63367)
Lake St. Louis against St. Charles County, its state and the nation
| Lake St. Louis | St. Charles County | Missouri | United States | |
|---|---|---|---|---|
| Residents | 18,066 (±32) | 414,535 (exact) | 6,191,814 (exact) | 334,922,499 |
| Housing units | 7,657 (±323) | 167,163 (±126) | 2,825,287 (±1,043) | 143,775,355 |
| Households that rent | 24.4% (±3.7 points) | 19.5% (±0.6 points) | 31.9% (±0.2 points) | 34.8% |
| Median gross rent | $1,588 (±$138) | $1,370 (±$21) | $1,033 (±$6) | $1,413 |
| Median household income | $125,693 (±$12,310) | $104,692 (±$1,179) | $70,702 (±$325) | $80,734 |
| Median home value | $405,900 (±$24,017) | $320,800 (±$3,551) | $230,300 (±$880) | $332,700 |
| Median real estate taxes (a year) | $4,448 (±$272) | $3,480 (±$35) | $1,948 (±$11) | $3,119 |
| Built before 1980 | 19.4% (±4.3 points) | 24.8% (±1.0 points) | 52.8% (±0.4 points) | 49.7% |
| Average commute | 25.6 minutes (±1.9) | 24.5 minutes (±0.4) | 23.5 minutes (±0.1) | 26.4 minutes |
| Households with broadband | 98.3% (±1.3 points) | 95.1% (±0.4 points) | 89.3% (±0.2 points) | 91.0% |
| Median age of residents | 42.7 years (±2.7) | 39.8 years (±0.2) | 39.0 years (±0.2) | 38.9 years |
Lake St. Louis covers 8.5 square miles of land, about 2,113 residents per square mile (Census Bureau Gazetteer).
How Lake St. Louis has changed since 2015–2019
| 2015–2019 | 2020–2024 | Amount of change | Verdict | |
|---|---|---|---|---|
| Residents | 15,989 (±76) | 18,066 (±32) | +13.0% | Measurable increase |
| Housing units | 6,700 (±265) | 7,657 (±323) | +14.3% | Measurable increase |
| Median gross rent | $1,130 (±$88) | $1,588 (±$138) | +40.5% | Up after inflation |
| Median home value | $274,400 (±$14,458) | $405,900 (±$24,017) | +47.9% | Up after inflation |
| Median household income | $92,298 (±$5,779) | $125,693 (±$12,310) | +36.2% | No measurable change after inflation |
| Median owner cost with a mortgage | $1,862 (±$105) | $2,225 (±$116) | +19.5% | No measurable change after inflation |
| Median real estate taxes | $3,391 (±$191) | $4,448 (±$272) | +31.2% | No measurable change after inflation |
| Households that rent | 19.7% (±3.4 points) | 24.4% (±3.7 points) | +4.7 percentage points | Not a measurable change |
| Rental vacancy rate | 10.6% (±8.1 points) | 11.9% (±8.8 points) | +1.3 percentage points | Not a measurable change |
The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.
Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.
The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.
Crime reported to police in Lake St. Louis
In 2025, the Lake St. Louis Police Department reported 106 violent and 348 property crimes per 100,000 residents to the FBI.
Across St. Charles County, the departments that report recorded 126 violent and 533 property crimes per 100,000 residents that year.
ZIP codes in Lake St. Louis
| ZIP code | Share of the ZIP’s land in this place | Residents | Median gross rent | Median home value | Median household income |
|---|---|---|---|---|---|
| 63367 | 65% | 29,725 | $1,634 | $409,100 | $137,648 |
A ZIP code is a mail route rather than a boundary, so the Census Bureau publishes figures for ZIP Code Tabulation Areas built from census blocks; the share column says how much of each one’s land lies in this place.
Places near Lake St. Louis
| Place | Distance | Median gross rent | Median home value | Households that rent |
|---|---|---|---|---|
| Josephville | 3.5 mi | $852 | $494,600 | 21.0% |
| O'Fallon | 3.5 mi | $1,443 | $326,200 | 19.0% |
| Dardenne Prairie | 4.6 mi | $1,444 | $432,000 | 8.4% |
| Wentzville | 5.2 mi | $1,345 | $331,300 | 17.5% |
| St. Paul | 5.3 mi | $975 | $443,600 | 1.3% |
| New Melle | 6.7 mi | — | $397,800 | 7.4% |
| Cottleville | 7.2 mi | $1,624 | $435,400 | 19.4% |
| Flint Hill | 7.3 mi | $1,611 | $475,500 | 27.8% |
Places in Missouri most like Lake St. Louis
| Place | Median gross rent | Median home value | Median household income | Households that rent |
|---|---|---|---|---|
| Lee's Summit | $1,422 | $340,900 | $102,531 | 26.6% |
| Cottleville | $1,624 | $435,400 | $131,310 | 19.4% |
| Flint Hill | $1,611 | $475,500 | $130,208 | 27.8% |
| Fenton | $1,622 | $374,500 | $101,000 | 17.4% |
| O'Fallon | $1,443 | $326,200 | $110,443 | 19.0% |
| Ellisville | $1,538 | $366,600 | $113,309 | 25.5% |
Matched on rent, home value, income, the share who rent, the age of the homes, the share in apartment buildings and the commute, each measured against the spread across Missouri.
HUD Fair Market Rent for Lake St. Louis, fiscal year 2027
| Studio | 1 bedroom | 2 bedrooms | 3 bedrooms | 4 bedrooms |
|---|---|---|---|---|
| $1,064 | $1,104 | $1,349 | $1,731 | $1,997 |
HUD also publishes a Small Area Fair Market Rent for each ZIP code in the area; the Fair Market Rent page for this place lists its ZIP codes.
HUD income limits for Lake St. Louis, fiscal year 2026
| Household size | Extremely low (30%) | Very low (50%) | Low (80%) |
|---|---|---|---|
| 1 person | $23,850 | $39,750 | $63,600 |
| 2 people | $27,250 | $45,400 | $72,650 |
| 3 people | $30,650 | $51,100 | $81,750 |
| 4 people | $34,050 | $56,750 | $90,800 |
| 5 people | $38,680 | $61,300 | $98,100 |
| 6 people | $44,360 | $65,850 | $105,350 |
| 7 people | $50,040 | $70,400 | $112,600 |
| 8 people | $55,720 | $74,950 | $119,900 |
These are the limits HUD sets for its housing programs in the St. Louis, MO-IL HUD Metro FMR Area, where HUD’s median family income for fiscal year 2026 is $113,500.
A program can use its own limits; tax-credit and local programs often do.
Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.
Margins of error are at the 90% confidence level.
What you can do on Seayora in Lake St. Louis
One account for renting, owning, managing and fixing homes, with these figures beside you.
Own or manage a rental?
List it, sign the lease and collect rent online, with the figures for Lake St. Louis beside you.
Create a landlord account · See what landlords get
Looking for a place to rent?
Browse homes for rent near Lake St. Louis, save the ones you like and apply online.
Browse rentals · Create a renter account
Do repairs, renovations or maintenance?
Get found by owners and renters near Lake St. Louis, and send estimates and invoices from your phone.
Questions about Lake St. Louis
What is the average rent in Lake St. Louis, MO?
The Census Bureau publishes the median rather than the average: the median gross rent in Lake St. Louis is $1,588 (±$138) a month (2020–2024 American Community Survey), so half of renting households pay less and half pay more.
How much is a one-bedroom apartment in Lake St. Louis?
The median gross rent for a one-bedroom home in Lake St. Louis, MO is $1,215 (±$141) a month (2020–2024 American Community Survey).
Are renters in Lake St. Louis rent-burdened?
32.5% of renting households in Lake St. Louis pay 30% or more of their income in gross rent, the share housing researchers usually call rent-burdened (2020–2024 American Community Survey).
How many renters are there in Lake St. Louis?
Lake St. Louis has an estimated 1,792 (±296) renting households, 24.4% of its occupied homes (2020–2024 American Community Survey).
What is the median household income in Lake St. Louis?
The median household income in Lake St. Louis is $125,693 (±$12,310) a year (2020–2024 American Community Survey).
What is the average home value in Lake St. Louis, MO?
The Census Bureau publishes the median: $405,900 (±$24,017) for owner-occupied homes in Lake St. Louis (2020–2024 American Community Survey).
Is Lake St. Louis growing?
In Lake St. Louis, the number of residents went from 15,989 in 2015–2019 to 18,066 in 2020–2024 (+13.0%), a measurable increase.
What ZIP codes are in Lake St. Louis?
The ZIP code that covers Lake St. Louis is 63367.
What is the median rent in ZIP code 63367?
The median gross rent in ZIP Code Tabulation Area 63367 is $1,634 (±$137) a month (2020–2024 American Community Survey).
Sources
- Demographic and Housing Estimates (DP05), 2020–2024 ACS 5-year estimates — Lake St. Louis city, Missouri
- Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Lake St. Louis city, Missouri
- Selected Economic Characteristics (DP03), 2020–2024 ACS 5-year estimates — Lake St. Louis city, Missouri
- Median Real Estate Taxes Paid by Mortgage Status (B25103), 2020–2024 ACS 5-year estimates — Lake St. Louis city, Missouri
- Selected Social Characteristics (DP02), 2020–2024 ACS 5-year estimates — Lake St. Louis city, Missouri
- Total Population (B01003), 2015–2019 ACS 5-year estimates — Lake St. Louis city, Missouri
- Median Gross Rent (B25064), 2015–2019 ACS 5-year estimates — Lake St. Louis city, Missouri
- HUD Fair Market Rents, fiscal year 2027: St. Louis, MO-IL HUD Metro FMR Area
- HUD Small Area Fair Market Rents, fiscal year 2027
- HUD Income Limits, fiscal year 2026: St. Louis, MO-IL HUD Metro FMR Area
- US Census Bureau, American Community Survey 2020–2024 5-year estimates for ZIP Code Tabulation Areas
- FBI Uniform Crime Reporting Program, Crime Data Explorer: Lake St. Louis Police Department (ORI MO0920900)
- FBI: Uniform Crime Reporting statistics and their proper use
- Consumer Price Index for All Urban Consumers (CPI-U), US city average, all items, US Bureau of Labor Statistics: annual averages 2019 and 2024
- US Census Bureau, 2024 Gazetteer Files
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 B01003_001E, B01003_001M, B25064_001E, B25064_001M from the 2019 release.
The API needs a free key.
DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0047PE, DP04_0047PM, DP04_0134E, DP04_0134M, DP03_0062E, DP03_0062M, DP04_0089E, DP04_0089M
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.
Figures last updated on .