Median Income
$123,427
64% higher than US avg
Home Value
$375,300
33% higher than US avg
Violent Crime
134/100K
65% lower than US avg
Bachelor's+
49.5%
47% higher than US avg
Median Rent
$1,608
38% higher than US avg
Obesity Rate
34.7%
8% higher than US avg
Unemployment
3.0%
17% lower than US avg
Poverty Rate
4.4%
65% lower than US avg
How Lake St. Louis Compares to the U.S. Average (100% = U.S. avg)
People
Population17,538
Median Age43.2 yrs
Density2,051/mi²
Male / Female50% / 50%
Largest GroupWhite 88%
Veterans9.1%
Economy
A+
Median Income$123,427
Per Capita$60,780
Unemployment3.0%
Poverty4.4%
Commute27 min
Housing
A+
Home Value$375,300
Rent$1,608
Ownership75.2%
Zillow$393,315
Housing Units7,071
Rent Burden21.5%
Crime
F
Violent134/100K
Property1,624/100K
Murder0.0/100K
Assault122/100K
Burglary85/100K
Health
Obesity34.7%
Uninsured6.0%
Smoking11.4%
Depression23.5%
Heart Disease4.5%
Climate
Avg Temp55°F (13°C)
AQI41 (Good)
Rain37.8 in/yr
Sunny Days267/yr
Elevation577 ft (176 m)
Education
A+
Bachelor's+49.5%
High School+97.2%
Graduate+17.0%
School Score5.51
Community
2024 VoteR 77% / D 22%
Commute27 min
Broadband96.5%
EV Stations1
Is Lake St. Louis a Good Place to Live?
Based on current data, Lake St. Louis receives an overall livability score of 4.0 out of 5.0, earning a grade of A. Key strengths include above-average household incomes, low unemployment, low crime rates, a highly educated population. Lake St. Louis stands out as an excellent place to live, with strong marks across most quality-of-life indicators.
Economy & Jobs
The median household income in Lake St. Louis is $123,427, which is significantly higher than the national average / 64% above $75,149. This places Lake St. Louis among higher-income communities. Unemployment stands at 3.0%, indicating a healthy job market. Only 4.4% of residents live below the poverty line, well below the national rate of 12.4%. Workers commute an average of 27 minutes.
Cost of Living & Housing
The median home value in Lake St. Louis is $375,300, 33% above the national median. Renters pay a median of $1,608 per month, significantly above the national average of $1,163. At just 3x median income, home prices are very affordable relative to local earnings.
Safety & Crime
Lake St. Louis is a very safe community with a violent crime rate of 134 per 100,000 residents / well below the national average of 380. Property crime occurs at a rate of 1,624 per 100,000, near the national average.
Education
Educational attainment is solid, with 49.5% holding a bachelor's degree or higher, near the national average. 97.2% have completed high school. Area schools have an average test score of 5.5/10.
Climate & Weather
Lake St. Louis experiences four distinct seasons with an average temperature of 55°F. Winters average 29°F in January while summers reach 78°F in July. With 267 sunny days per year, residents enjoy well above the national average of sunshine. Annual precipitation totals 37.8 inches, including 6.5 inches of snow. Air quality is rated Good with a median AQI of 41.
Lake St. Louis has a population of 17,538 with a density of 2,051 people per square mile, spread across 8.6 square miles. The median age is 43.2 years, 11% older than the national median of 38.9. The gender split is 50.4% female and 49.6% male. The city is predominantly White (87.6%), with 1.1% Hispanic, 4.2% Black. English is the primary language spoken at home by 94.3% of residents, while 5.7% speak Spanish. 9.1% of the population are veterans, above the national rate of 6.0%. 12.8% of residents have a disability. 97.0% have health insurance coverage.
Population
43.2yrs
Median Age
11% above US avg
Race & Ethnicity
Lake St. Louis vs U.S. Average
Language Spoken at Home
English Only
94.3%
20% above US avg
Spanish
5.7%
57% below US avg
Social Characteristics
Lake St. Louis vs U.S. Average
The median household income in Lake St. Louis is $123,427, which is 64% above the national average of $75,149. Per capita income is $60,780 (above the $39,052 national figure). The unemployment rate is 3.0% (below the 3.6% US average). 4.4% of residents live below the poverty line, lower than the national rate of 12.4%. The cost of living index is 90.8, below the national baseline of 100 / offering relatively affordable living. Workers commute an average of 27 minutes. 18.3% of workers work from home.
Income: Lake St. Louis vs U.S.
Income
| Median HH Income | $123,427 |
| 64% above US avg |
| Per Capita Income | $60,780 |
Employment & Poverty
| Unemployment | 3.0% |
| 17% below US avg |
| Poverty Rate | 4.4% |
| 65% below US avg |
Tax & Cost of Living
| |
| Cost of Living | 90.80 (100=avg) |
Commute & Transportation
| Commute Time | 26.8 min |
| Drive Alone | 75.3% |
| Public Transit | 0.0% |
| Work from Home | 18.3% |
The median home value in Lake St. Louis is $375,300, 33% above the national median of $281,900. Zillow estimates the typical home value at $393,315. Homes sell for 97% of their list price. Monthly rent averages $1,608 (38% above the national average of $1,163). Fair market rent ranges from $775 for a one-bedroom to $970 for a two-bedroom apartment. 75.2% of housing units are owner-occupied (above the 65.4% national rate). There are 7,071 total housing units in the city. The median year a home was built is 1996. 21.5% of renters spend 30% or more of their income on housing. The home price-to-income ratio is 3x, well within the affordable range.
Home Values
| Census Median | $375,300 |
| 33% above US avg |
| Zillow ZHVI | $393,315 |
| Median List Price | $419,900 |
Real Estate Market (Redfin)
| Median List Price | $419,900 |
| $/Sq Ft | $166 |
| Homes Sold | 24 |
| Sale-to-List Ratio | 97.0% |
| Price Drops | 31.2% |
| Inventory | 61 |
Rental Costs
| Census Median Rent | $1,608 |
| 38% above US avg |
| Rent Burden | 21.5% |
HUD Fair Market Rent
| Studio | $732 |
| 1 Bedroom | $775 |
| 2 Bedrooms | $970 |
| 3 Bedrooms | $1,265 |
| 4 Bedrooms | $1,457 |
Ownership & Property
| Homeownership | 75.2% |
| Owner-Occupied | 75.2% |
| Renter-Occupied | 24.8% |
| Housing Units | 7,071 |
| Median Year Built | 1996 |
Property Tax
In Lake St. Louis, 34.7% of adults are obese, above the national rate of 32.1%. 8.4% have diabetes (below the 10.5% national rate). Heart disease affects 4.5% of residents, below the national average. 27.7% have high blood pressure. 11.4% are current smokers. 20.5% report binge drinking. 20.7% are physically inactive, below the national average. 23.5% report depression (above the 20.0% national average). 15.7% experience frequent mental distress. 6.0% of residents lack health insurance (below the 8.6% national rate).
Air Quality (Open-Meteo CAMS — 2026-05-27)
PM2.5
14.1
μg/m³
Fine particulate
PM10
14.5
μg/m³
Coarse particulate
NO₂
6.8
μg/m³
Nitrogen dioxide
SO₂
2.6
μg/m³
Sulphur dioxide
CO
174.0
μg/m³
Carbon monoxide
Health Metrics: Lake St. Louis vs U.S. Average (%)
Chronic Conditions
| Obesity | 34.7% |
| 8% above US avg |
| Diabetes | 8.4% |
| Heart Disease | 4.5% |
| High Blood Pressure | 27.7% |
| Asthma | 10.1% |
| COPD | 4.7% |
| Cancer | 7.7% |
| Stroke | 2.3% |
Behaviors & Mental Health
| Smoking | 11.4% |
| 19% below US avg |
| Binge Drinking | 20.5% |
| Physical Inactivity | 20.7% |
| Depression | 23.5% |
| Mental Distress | 15.7% |
| Physical Distress | 10.7% |
| Short Sleep | 39.6% |
Healthcare Access
| Insurance Rate | 97.0% |
| Uninsured | 6.0% |
| 30% below US avg |
| Checkup Rate | 76.4% |
| Dental Visits | 68.3% |
Food & Exercise
Lake St. Louis has a violent crime rate of 134 per 100,000 residents, 65% below the national average of 380. This breaks down to aggravated assault at 121.6 per 100,000, robbery at 12.2, rape at 0.0. The murder rate is 0.0 per 100,000 (below the national rate of 6.3). Property crime stands at 1,624 per 100,000, 17% below the U.S. average. This includes larceny/theft at 1,423, burglary at 85, vehicle theft at 116 per 100,000 residents. Overall, Lake St. Louis receives a safety grade of F.
Crime Rates: Lake St. Louis vs U.S. Average (per 100,000)
Violent Crime
| Total Violent | 133.8/100K |
| 65% below US avg |
| Murder | 0.0/100K |
| 100% below US avg |
| Rape | 0.0/100K |
| Robbery | 12.2/100K |
| Assault | 121.6/100K |
Property Crime
| Total Property | 1,623.7/100K |
| 17% below US avg |
| Burglary | 85.1/100K |
| Theft | 1,423.0/100K |
| Vehicle Theft | 115.5/100K |
| Arson | 0.0/100K |
Traffic Safety
| Avg Accident Severity | 0.0 / 4.0 |
Safety Score
| Safety Grade | F |
| Safety Score | 1.0 / 5.0 |
Lake St. Louis experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 29°F in January while summers reach 78°F in July. The area gets 267 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 37.8 inches. The area receives 6.5 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 577 feet.
Temperature
29°F Jan (-2°C)
78°F Jul (26°C)
| Annual Average | 54.7°F |
| 1% above US avg |
| January Average | 29°F (-2°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 267 days/yr |
Geography
| Elevation | 577 ft (176 m) |
| Area | 8.6 sq mi (22.1 km²) |
| Population Density | 2,051/sq mi |
| Coordinates | 38.7850°N, 90.7935°W |
| Timezone | America/Chicago |
| Nearest Airport | St Louis Lambert International (STL)
23 miles away |
Precipitation & Snow
Annual Rainfall
37.8"
1% below US avg
Wettest Month (May)
4.25"
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
25 earthquakes (M2.5+) within 150 km since 1990.
Strongest: M3.9. Most recent: M2.6 on Sep 19, 2024.
| Jun 7, 2011 |
18 km NNW of Potosi, Missouri |
M3.9 |
79 km |
| Mar 2, 1990 |
9 km NW of Vernon, Illinois |
M3.4 |
141 km |
| Aug 27, 1993 |
5 km SSE of Olympian Village, Missouri |
M3.3 |
83 km |
| Jul 1, 2017 |
9 km SSE of Mulberry Grove, Illinois |
M3.1 |
136 km |
| Jul 8, 2003 |
1 km N of Leasburg, Missouri |
M2.9 |
87 km |
| Feb 8, 2004 |
6 km SSW of Stoutsville, Missouri |
M2.9 |
123 km |
| May 18, 2006 |
9 km SSE of De Soto, Missouri |
M2.9 |
85 km |
| Apr 29, 2022 |
1 km SSW of Peerless Park, Missouri |
M2.8 |
38 km |
| Mar 28, 2024 |
1 km NNE of Germantown, Illinois |
M2.8 |
112 km |
| Jul 31, 1995 |
8 km SSW of Caledonia, Missouri |
M2.8 |
122 km |
| May 5, 2008 |
3 km SSE of Fenton, Missouri |
M2.8 |
47 km |
| Sep 13, 1997 |
3 km SSE of Darmstadt, Illinois |
M2.8 |
109 km |
| Jul 15, 1990 |
7 km SW of Potosi, Missouri |
M2.7 |
101 km |
| Nov 12, 1996 |
15 km SSE of Olympian Village, Missouri |
M2.7 |
94 km |
| Jul 22, 1998 |
12 km NE of Mine La Motte, Missouri |
M2.7 |
133 km |
| Sep 5, 2015 |
5 km SE of High Ridge, Missouri |
M2.7 |
48 km |
| Feb 3, 2014 |
18 km NW of Potosi, Missouri |
M2.6 |
81 km |
| Nov 25, 2013 |
8 km NE of Bonne Terre, Missouri |
M2.6 |
94 km |
| Mar 7, 2009 |
7 km S of Miramiguoa Park, Missouri |
M2.6 |
72 km |
| Jun 11, 1996 |
2 km SSE of Perryville, Missouri |
M2.6 |
145 km |
Source: USGS (M2.5+, 1990–2025)
Tornado History
527 tornadoes (EF0+) within 100 km since 1950.
Strongest: EF4. Total: 57 fatalities, 1,066 injuries.
| Date |
Rating |
Distance |
Fatalities |
| Apr 22, 2011 |
EF4 |
27 km |
0 |
| Apr 3, 1981 |
EF4 |
58 km |
0 |
| Jun 22, 1969 |
EF4 |
97 km |
2 |
| Jan 24, 1967 |
EF4 |
24 km |
3 |
| Feb 10, 1959 |
EF4 |
33 km |
21 |
| Feb 24, 1956 |
EF4 |
39 km |
6 |
| Dec 10, 2021 |
EF3 |
23 km |
1 |
| Dec 10, 2021 |
EF3 |
64 km |
6 |
| May 31, 2013 |
EF3 |
56 km |
0 |
| May 31, 2013 |
EF3 |
12 km |
0 |
| Dec 31, 2010 |
EF3 |
43 km |
1 |
| Mar 13, 2006 |
EF3 |
58 km |
0 |
| Mar 13, 2006 |
EF3 |
46 km |
0 |
| Mar 11, 2006 |
EF3 |
84 km |
0 |
| Nov 15, 1988 |
EF3 |
8 km |
0 |
| Nov 15, 1988 |
EF3 |
71 km |
0 |
| Apr 29, 1984 |
EF3 |
21 km |
0 |
| May 1, 1983 |
EF3 |
73 km |
0 |
| May 1, 1983 |
EF3 |
58 km |
0 |
| Dec 2, 1982 |
EF3 |
99 km |
2 |
Source: NOAA SPC (EF0+, 1950–2024)
Wildfire History
12 wildfires (100+ acres) within 100 km.
Largest: SMITH MILL HOLLOW (3,978 ac, 2022).
| Year |
Name |
Acres |
Distance |
| 2022 |
SMITH MILL HOLLOW |
3,978 |
94 km |
| 2019 |
UNNAMED |
2,688 |
94 km |
| 2004 |
CICERO CREEK |
1,846 |
86 km |
| 2021 |
BERRYMAN BLOCK B AND C |
1,728 |
97 km |
| 2024 |
HARMON SPRING RX |
1,330 |
92 km |
| 2018 |
UNNAMED |
1,285 |
92 km |
| 2024 |
FLATWOODS RX |
796 |
96 km |
| 2022 |
NORTH KOFFER HOLLOW |
783 |
95 km |
| 1989 |
UNNAMED |
600 |
95 km |
| 2000 |
UNNAMED |
549 |
90 km |
| 1992 |
UNNAMED |
533 |
96 km |
| 1997 |
FLATWOODS |
530 |
95 km |
Source: NIFC/IRWIN (100+ acres)
Monthly Weather
| Month |
Avg Temperature |
Precipitation |
Summary |
| January |
29°F (-2°C) |
1.8 in |
Coldest, Driest |
| February |
34°F (1°C) |
2.1 in |
|
| March |
44°F (7°C) |
3.4 in |
|
| April |
55°F (13°C) |
3.7 in |
|
| May |
64°F (18°C) |
4.3 in |
Wettest |
| June |
73°F (23°C) |
3.5 in |
|
| July |
78°F (26°C) |
3.9 in |
Warmest |
| August |
76°F (24°C) |
3.2 in |
|
| September |
68°F (20°C) |
3.2 in |
|
| October |
57°F (14°C) |
3.0 in |
|
| November |
45°F (7°C) |
3.2 in |
|
| December |
34°F (1°C) |
2.6 in |
|
Lake St. Louis has a seasonal temperature swing of 49°F / from 29°F in January to 78°F in July. Total annual precipitation is 37.8 inches, with May being the wettest month (4.3") and January the driest (1.8").
Average costs for common services in Lake St. Louis. Prices are estimated based on regional cost of living data and may vary by provider.
Healthcare
| Doctor Visit (Primary Care) |
$227 ($136–$363) |
| Specialist Visit |
$318 ($182–$499) |
| Urgent Care Visit |
$182 ($91–$318) |
| Emergency Room Visit |
$1,998 ($726–$4,540) |
| Dental Cleaning |
$118 ($68–$182) |
| Dental Filling |
$227 ($136–$363) |
View all 40 services
Auto Repair
| Oil Change (Conventional) |
$41 ($23–$68) |
| Oil Change (Synthetic) |
$68 ($45–$109) |
| Brake Pad Replacement |
$272 ($136–$454) |
| Tire Rotation |
$36 ($18–$68) |
| New Tires (Set of 4) |
$545 ($363–$908) |
| Battery Replacement |
$182 ($91–$318) |
View all 18 services
Home Services
| Plumber (Per Hour) |
$91 ($54–$136) |
| Electrician (Per Hour) |
$82 ($45–$127) |
| HVAC Repair |
$363 ($136–$726) |
| HVAC System Install |
$6,356 ($3,632–$10,896) |
| Roof Repair |
$908 ($363–$1,816) |
| Roof Replacement |
$8,172 ($4,994–$13,620) |
View all 25 services
Legal
| Divorce (Uncontested) |
$1,362 ($454–$3,178) |
| Divorce (Contested) |
$13,620 ($4,540–$27,240) |
| DUI Defense |
$4,540 ($1,816–$9,080) |
| Bankruptcy (Chapter 7) |
$1,362 ($726–$2,724) |
| Will Preparation |
$454 ($182–$908) |
| Trust Preparation |
$2,270 ($908–$4,540) |
View all 12 services
Personal Care
| Men's Haircut |
$23 ($14–$41) |
| Women's Haircut |
$50 ($27–$91) |
| Hair Coloring (Full) |
$136 ($68–$227) |
| Manicure |
$23 ($14–$41) |
| Pedicure |
$36 ($23–$59) |
| Massage (1 Hour) |
$73 ($45–$118) |
View all 12 services
Food & Grocery
| Gallon of Milk (per gallon) |
$3.72 ($2.72–$4.99) |
| Dozen Eggs (per dozen) |
$3.18 ($2.27–$4.54) |
| Loaf of Bread |
$3.45 ($2.27–$4.99) |
| Chicken Breast (per lb) |
$4.09 ($2.72–$5.90) |
| Ground Beef (per lb) |
$4.99 ($3.63–$6.81) |
| Rice (per lb) |
$0.91 ($0.54–$1.63) |
View all 20 services
Utilities
| Electricity (Monthly) |
$127 ($73–$227) |
| Natural Gas (Monthly) |
$64 ($27–$136) |
| Water/Sewer (Monthly) |
$64 ($36–$109) |
| Internet (Monthly) |
$64 ($36–$91) |
| Cell Phone Plan (Monthly) |
$59 ($27–$91) |
| Cable TV (Monthly) |
$77 ($45–$136) |
View all 8 services
Transportation
| Monthly Parking (Downtown) |
$182 ($68–$454) |
| Car Insurance (Annual) |
$1,816 ($1,090–$3,178) |
| Bus Pass (Monthly) |
$64 ($27–$118) |
| Taxi/Uber (5-Mile Ride) |
$14 ($7.26–$23) |
| Car Registration (Annual) |
$91 ($27–$227) |
| Driver's License Renewal |
$27 ($14–$68) |
View all 8 services
Education & Childcare
| Daycare (Infant, Monthly) |
$1,090 ($545–$2,270) |
| Daycare (Toddler, Monthly) |
$908 ($454–$1,816) |
| After-School Care (Monthly) |
$363 ($182–$636) |
| Tutoring (Per Hour) |
$45 ($23–$91) |
| SAT/ACT Prep Course |
$908 ($363–$2,270) |
| Private School (K-12, Annual) |
$11,350 ($4,540–$27,240) |
View all 8 services
Pets
| Vet Visit (Routine Checkup) |
$54 ($27–$91) |
| Dog Vaccination (Annual) |
$91 ($45–$182) |
| Dog Grooming |
$54 ($27–$91) |
| Pet Boarding (Per Night) |
$36 ($18–$68) |
| Dog Spay/Neuter |
$272 ($136–$454) |
| Cat Spay/Neuter |
$182 ($91–$363) |
View all 9 services
Frequently Asked Questions About Lake St. Louis
What is the population of Lake St. Louis?
Lake St. Louis has a population of 17,538 residents and is located in Missouri. The population density is 2,051 people per square mile, spread across 8.6 square miles. The median age of residents is 43.2 years, which is older than the national median of 38.9 years. The population is 50.4% female and 49.6% male.
Is Lake St. Louis expensive to live in?
Lake St. Louis is more affordable than the national average, with a cost of living index of 90.8 / below the baseline of 100. The median household income is $123,427, 64% above the national average of $75,149. The median home value is $375,300 (33% above the U.S. median). Renters pay a median of $1,608 per month, above the national average of $1,163. The home price-to-income ratio is 3x, indicating housing is reasonably affordable relative to local income levels.
Is Lake St. Louis safe?
Lake St. Louis is considered a very safe city with a violent crime rate of 134 per 100,000 residents, well below the national average of 380. Property crime occurs at a rate of 1,624 per 100,000 (below the national average). Overall, Lake St. Louis receives a safety grade of F based on combined crime data.
What is the weather like in Lake St. Louis?
Lake St. Louis has a four-season climate with an average annual temperature of 55°F (13°C). Winter temperatures average 29°F in January, while summers reach an average of 78°F in July. The area receives 267 sunny days per year, well above the national average of 205. Annual rainfall totals 37.8 inches, with 6.5 inches of snow. Air quality is rated Good with a median Air Quality Index (AQI) of 41.
How is the job market in Lake St. Louis?
Lake St. Louis has a healthy job market with an unemployment rate of 3.0%, near the national average of 3.6%. The average commute time is 27 minutes, and 18.3% of workers work from home.
How much does housing cost in Lake St. Louis?
The median home value in Lake St. Louis is $375,300. Zillow estimates the typical home value at $393,315. For renters, the median monthly rent is $1,608. Fair market rent is $775 for a 1-bedroom and $970 for a 2-bedroom apartment. The homeownership rate is 75.2%.
How are the schools in Lake St. Louis?
Schools in Lake St. Louis score 5.5 out of 10 on standardized testing, near the national average. 49.5% of adults in Lake St. Louis hold a bachelor's degree or higher, above the national average of 33.7%. 97.2% have completed high school. 17.0% hold a graduate or professional degree.
How healthy is Lake St. Louis?
The obesity rate in Lake St. Louis is 34.7% (above the national rate of 32.1%). 11.4% of adults are smokers. 20.7% are physically inactive. 23.5% of residents report depression. 6.0% lack health insurance (below the national rate).
What is transportation like in Lake St. Louis?
The average commute in Lake St. Louis is 27 minutes. 75.3% of workers drive alone to work, and 18.3% work from home.
What are the demographics of Lake St. Louis?
The racial and ethnic makeup of Lake St. Louis is 87.6% White, 4.2% Black or African American, 1.1% Hispanic or Latino. 94.3% of residents speak only English at home, while 5.7% speak Spanish. 9.1% of the population are military veterans. 12.8% of residents have a disability. 97.0% have health insurance coverage.
All Countries
