City safety & data profile

Lake Saint LouisMO

Lake Saint Louis, MO is a 15K-resident city in St. Charles County with a median household income of $125,693.

St. Charles County, Missouri. Federal health, economic, and safety indicators for Lake Saint Louis, drawn from the U.S. Census Bureau American Community Survey, CDC PLACES, and CMS Hospital Compare. Lake Saint Louis has a population larger than 25% of the 4,640 U.S. cities Areazine tracks, a median home value of $405,900, and 1 hospital serving the surrounding area.

Data updated 2026-09-03

15K
Population (place)
Bottom 26%
By size
$125,693
Median income (place)
$405,900
Median home (place)
4.3%
Poverty rate (place)
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The read on Lake Saint Louis

Lake Saint Louis posts a median household income higher than 85% of U.S. cities Areazine tracks, where 1 hospital serves the Lake Saint Louis area.

Top 15%
by median income, US cities
1
hospital in & near Lake Saint Louis

Where Lake Saint Louis income ranks nationally

Median household income vs. every place Areazine profiles (place-level ACS)

$125,693 Top 15% higher than 85% of 3,889 places Areazine profiles

Lake Saint Louis $0 $260,000 every profiled place, bucketed by value

Each bar is a $20K-wide band; taller bars hold more places Areazine profiles. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, American Community Survey (place-level) · 2024 ACS 5-year

Largest cities in MO

Population among 83 MO places with 10,000+ residents and ACS income on Areazine. Tooltip shows the income rank in the same pool.

residents

What this shows Kansas City is the largest MO city on this list; Town and Country leads median income.

Source U.S. Census Bureau, American Community Survey (place-level) As of 2024 ACS 5-year

Highest median incomes in MO

Median household income among the same 83-city pool. Tooltip shows the population rank.

median

What this shows Town and Country posts the highest place-level median income in MO; Kansas City is largest by headcount.

Source U.S. Census Bureau, American Community Survey (place-level) As of 2024 ACS 5-year

The quick read

Reading Lake Saint Louis, MO beyond the headline numbers

Lake Saint Louis sits inside St. Charles County, Missouri, at roughly 38.80°N, -90.79°W. Population 14,545, $125,693 median household income. Median home value $405,900, median rent $1,588. Poverty rate 4.3%, read against that income figure since two cities on the same median can differ underneath it.

1 hospital in/around Lake Saint Louis, 3/5 avg rating, 1 with an ER.

Hardship is low by national standards: 4.3% of Lake Saint Louis, MO residents live below the poverty line, in the least-affected quarter of the 3,890 cities reporting a rate.

The median home in Lake Saint Louis costs roughly 3.2 times median household income, below the midpoint for reporting cities, so ownership remains reachable on a typical local wage.

21.9% of Lake Saint Louis workers report working from home, the highest quarter of reporting cities. Where that share runs this high, local income increasingly reflects employers located somewhere else.

Among the CDC measures on this page, frequent mental distress departs furthest from its peer median: 14.1% in Lake Saint Louis, the lowest-prevalence quarter of the 3,759 cities reporting that measure.

Public transit carries 0% of Lake Saint Louis workers, a smaller share than at least three quarters of reporting cities.

At 42.7 years, Lake Saint Louis's median age is in the oldest quarter of reporting cities.

Sources: U.S. Census ACS, CDC PLACES, CMS Hospital Compare, plus live alerts for Lake Saint Louis from FEMA, NOAA, FDA, and CPSC. Economic comparison bars use the unweighted average across tracked Census places with a reported value, not a household-weighted national median.

Population (place)
14,545
Lake Saint Louis · Census Place
Median Income (place)
$125,693
+41% vs avg
Median Home Value (place)
$405,900
Near average
Median Age (place)
42.7
years · ACS place

10-Year Trends 2013–2024

County-level trend (St. Charles County): Lake Saint Louis's own historical series isn't separately published by the Census Bureau, so these year-over-year figures track the surrounding county, not the city alone.

20132024
Population
415K+14%
Median Income
$104,692+47%
Median Home Value
$320,800+70%
Poverty Rate
5.2%-10%
Unemployment
2.9%-57%

Economics

Economics indicators for Lake Saint Louis, MO
IndicatorValue
Median Rent
$1,588/mo
Poverty Rate
4.3% -65% vs avg
Unemployment 4.7%
Bachelor's Degree+ 51.7%
Work From Home 21.9%
Public Transit 0%

Population

White 85.4%
African American 5.5%
Asian 1.9%
Two or More Ethnicities 4.7%

Health Profile 15 measures

Health Indicators

Short Sleep Duration
38.1%
Obesity
34.9%
High Blood Pressure
33.6%
Physical Inactivity
22.2%
Binge Drinking
17.7%
Frequent Mental Distress
14.1%
Frequent Physical Distress
11.8%
Current Smoking
11.1%
Diabetes
10.8%
Current Asthma
10%

Preventive Care

Dental Visit 69.6%
Annual Checkup 79.7%

Other Measures

Coronary Heart Disease
6.1%
Lack of Health Insurance
5.6%
Stroke
3%

Hospitals 1 total

Rating Distribution
★★★★★
0
★★★★
0
★★★
1
★★
0
★
0
Average Rating
3/5
Total Hospitals
1
With ER
1
SSM ST JOSEPH HOSPITAL WEST
LAKE SAINT LOUIS · Acute Care Hospitals · ER
★★★☆☆

What alerts and safety updates affect Lake Saint Louis?

No area-tagged alerts are on record for Lake Saint Louis right now. New federal and counterpart-agency notices still land in the site feed as agencies publish them.

City alert dispatch desk

Sheet MO-LAKE-SAINT-LOUIS · Lake Saint Louis

Lake Saint Louis: no area-tagged alerts on record — state hubs carry the live CAP stream.

  • FEED-QUIET No tagged alerts
  • LEAD-NONE Feed idle
  • DESK-IDLE Awaiting feed

Counts reflect published articles tagged to Lake Saint Louis; untagged NOAA county warnings may still appear in the site feed. Browse Missouri state hubs · Methodology

Read with this city profile

Tracking Safety Alerts in Your Area

How Areazine tags Lake Saint Louis in the CAP feed
All safety guides →

Frequently Asked Questions 6

What is the population of Lake Saint Louis, MO? ▼
Lake Saint Louis, MO has a population of 14,545 people, located in St. Charles County, Missouri.
What is the median household income in Lake Saint Louis? ▼
The median household income in Lake Saint Louis, MO is $125,693 per year, per the U.S. Census ACS. The poverty rate is 4.3%.
What is the median home value in Lake Saint Louis? ▼
The median home value in Lake Saint Louis, MO is $405,900. Median rent is $1,588/month.
What are the top health concerns in Lake Saint Louis? ▼
The top health indicators in Lake Saint Louis include Short Sleep Duration (38.1%), Obesity (34.9%), High Blood Pressure (33.6%). Data from CDC PLACES.
How many hospitals are in Lake Saint Louis? ▼
Lake Saint Louis has 1 hospital with an average rating of 3/5 stars. 1 have emergency departments.
What is the median age in Lake Saint Louis? ▼
The median age in Lake Saint Louis, MO is 42.7 years. 51.7% of residents have a bachelor's degree or higher.

Nationwide cities with similar poverty or income 8

Two ACS-derived peer sets for Lake Saint Louis, both outside Missouri so the neighborhoods are not the geographic nearby list below.

Similar poverty rate

Nearest place-level ACS poverty rates outside MO (4.3% here).

Plymouth, MN 4.3% Flower Mound, TX 4.3% Bethesda, MD 4.3% Sammamish, WA 4.3%

Similar median income

Nearest place-level ACS median household incomes outside MO ($125,693 here).

Stony Point, NY $125,667 Claremont, CA $125,647 Kaneohe, HI $125,613 Bohemia, NY $125,781

Compare Lake Saint Louis with another city

Pick a second U.S. city to open a side-by-side profile on population, income, health, and hospitals, the same federal datasets as this page.

Quick picks:

Nearby Cities 8

Dardenne Prairie, MO 13K Wentzville, MO 36K O'Fallon, MO 85K Saint Peters, MO 53K Wildwood, MO 36K Chesterfield, MO 48K Troy, MO 12K Saint Charles, MO 66K
All cities in Missouri → Compare Lake Saint Louis vs Dardenne Prairie → All comparisons → Browse all cities

Using Lake Saint Louis's profile

Use this as a starting research checklist, not a verdict on whether to live here.

  • Check live recalls, weather and hazard alerts scoped to the Lake Saint Louis area before relying on national headlines. Check your area
  • Read the poverty rate alongside the income figure, two places with the same median can have very different realities.
  • Compare Lake Saint Louis against Missouri peers on any ranking lens. Explore Missouri

Population and economics (income, home value, poverty, education) are place-level U.S. Census ACS; health is CDC PLACES; hospital counts reflect facilities in and around the city. County-level trends are labeled when shown.

Data Sources

All data on this page comes from official U.S. government sources. Population and economic data from the Census Bureau American Community Survey (2024 5-year estimates, place geography). Health data from the CDC PLACES program (2023). Hospital ratings from CMS Hospital Compare (2024). Climate data from NOAA. Education data from NCES. Cost of living from Bureau of Economic Analysis. Crime statistics, where referenced on Areazine, originate from the FBI Crime Data Explorer. Housing market figures referenced on Areazine come from HUD Fair Market Rents. Census economics and population are at place geography; some health and hospital indicators are reported at the county level (St. Charles County) where that is the smallest published unit.

Every figure on Areazine is published directly from official U.S. government sources, no number is typed in by an editor. City demographic and health figures are compiled directly from U.S. Census (place-level ACS), CDC, and CMS releases, updated quarterly within 30 days of upstream release. County-level trends are labeled when shown. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026.