City

Lake Saint Louis, MO

1 ZIP code  ·  Saint Charles County  ·  Missouri

👥27,893Population
💰$134,932Median HH Income▲ 77% above avg
🎂39.7Median Age
🏠$381,000Median Home Value▲ 37% above avg
🎓58.6%College Grads▲ 51% above avg
📊3.8%Unemployment▼ 23% below avg
People & Population (ACS 2023 — weighted avg)
♂ Male 49.5% Female 50.5% ♀

Race & Ethnicity

White: 85.6%Hispanic: 3.3%Black: 5.1%Asian: 1.6%Other: 4%Race
White85.6%
Hispanic3.3%
Black5.1%
Asian1.6%
Other4.0%

Age Breakdown

Under 5
5%
5–17
19%
18–24
8%
25–44
26%
45–64
26%
65+
7%

Key Indicators

Median Age39.7 yrs
Avg HH Size2.65
Below Poverty2.9% ▼ 71% below avg
College Grads58.6% ▲ 51% above avg
Unemployment3.8% ▼ 23% below avg
No HS Diploma45 (0.2%)
HS Graduate2,932 (15.9%)
Some College2,112 (11.4%)
Associates2,567 (13.9%)
Bachelors1,890 (10.2%)
Graduate Degree8,927 (48.3%)

Education

No HS: 0.2%HS Grad: 15.9%Some College: 11.4%Associates: 13.9%Bachelors: 10.2%Graduate: 48.3%Edu
No HS0.2%
HS Grad15.9%
Some College11.4%
Associates13.9%
Bachelors10.2%
Graduate48.3%
Housing & Income

Housing Tenure

Owner: 81%Renter: 19%Tenure
Owner81.0%
Renter19.0%

Home Value Distribution

Under $50k
1%
$50k–$100k
2%
$100k–$150k
1%
$150k–$200k
4%
$200k–$300k
20%
$300k–$500k
47%
Over $500k
26%

Financials

Median HH Income$134,932 ▲ 77% above avg
Median Home Value$381,000 ▲ 37% above avg
Home/Income Ratio2.8x (nat avg ~3.5x)
Median Rent$1,654/mo
Total Housing Units10,884
Vacant Units354

Income Distribution

Under $25k
5%
$25k–$50k
8%
$50k–$75k
10%
$75k–$100k
10%
$100k–$150k
24%
$150k–$200k
18%
Over $200k
25%
Employment & Commute

How People Get to Work

Drove Alone
77%
Walked
0%
Work From Home
23%

Commute Time

Under 15 min
21%
15–30 min
37%
30–45 min
29%
Over 45 min
13%
Housing Stock

Year Built

Before 1940
0%
1940s–1950s
2%
1960s–1970s
11%
1980s–1990s
21%
2000+
66%
About Lake Saint Louis, MO

Lake Saint Louis is a city in Missouri, located in Saint Charles County. The city spans 1 ZIP code and is home to approximately 27,893 residents. It is a middle-aged city, with a median age of 39.7 years.

Economically, Lake Saint Louis is a upper-middle-income community. The median household income of $134,932 is significantly above the national average. Approximately 2.9% of residents live below the poverty line. The unemployment rate is 3.8%, below the national average.

The real estate market in Lake Saint Louis is a mid-range housing market. Median home values stand at $381,000, which is above the national average. Renters typically pay around $1,654 per month. Homeownership is high at 81.0%, typical of suburban and family-oriented communities.

The population of Lake Saint Louis is well-educated. 58.6% of adults hold a bachelor's degree or higher — significantly above the national average. The community is primarily White (85.63%).

Lake Saint Louis, MO offers residents above-average earning potential within Missouri.

ZIP Codes in Lake Saint Louis
ZIPPopulationMedian IncomeMedian HomeMedian RentUnemp.CollegeOwner Occ.
63367 27,893 $134,932 $381,000 $1,654 3.8% 58.6% 81.0%