Best Schools in Lake St. Louis, Missouri
3 schools · 2 Elementary · 1 High
Choosing a school in Lake St. Louis?
Use this page to compare every school in Lake St. Louis by level, neighborhood, and district — and find the right fit, not just the top of the list.
Shortlist starter
Start with these real page-level signals, then use the full table and map below.
Duello Elem.
Elementary · Wentzville R-iv. Ranked from real test data; use the map and table below to check address fit.
Liberty High School
High · Wentzville R-iv. Ranked from real test data; use the map and table below to check address fit.
Green Tree Elem.
Elementary · Wentzville R-iv. Ranked from real test data; use the map and table below to check address fit.
The short answer
The top-rated schools in Lake St. Louis for 2026 are Duello Elem. (6.9/10), Liberty High School (6.9/10), and Green Tree Elem. (4.4/10), based on MySchoolScout's analysis of real test data across 3 rated schools. Ratings blend student growth, poverty-adjusted academic achievement, and school environment (plus college readiness for high schools), with equity shown as context, not scored; schools with estimated (proxy) scores are excluded from this ranking.
Schools
3
in this city
Avg Score
6.1
out of 10
Median Home
$381,000
home value · ACS
District
1
serving the city
Schools
3
in this city
Avg Score
6.1
out of 10
Median Home
$381,000
home value · ACS
District
1
serving the city
Top-Rated Schools in Lake St. Louis
Ranked by MySchoolScout composite using only schools with real test data (3 of 3). "Value" = points above what student poverty predicts. Estimated (proxy) scores are excluded.
| # | School | Rating |
|---|---|---|
| 1 | Duello Elem. | 6.9 / 10 |
| 2 | Liberty High School | 6.9 / 10 |
| 3 | Green Tree Elem. | 4.4 / 10 |
See every school — including those with estimated data — in the full directory below. How we rate schools.
Family Snapshot
At a glance- Avg school rating
- 6.1/10
- Median household income
- $134,932
- Median home value
- $381,000
- Bachelor's degree or higher
- 49%
- Avg commute
- 27 min
- Owner-occupied homes
- 81%
0% of schools rated 7+
Census ACS, ZIPs in this city
Owner-occupied units
Adults 25+
Workers age 16+
Of occupied housing units
How Lake St. Louis compares
Missouri rank
#159 of 258
cities by avg. school score
Vs. state average
-0.2
below Missouri avg (6.3)
Median household income
$135k
205% of Missouri median
Schools in this city
3
About Schools in Lake St. Louis, Missouri
Lake St. Louis, Missouri is home to 3 schools, including 3 public schools. The city's schools span 2 elementary schools, , and 1 high school.
With an average rating of 6.1 out of 10, schools in Lake St. Louis show moderate performance on the MySchoolScout composite scale, which blends student growth, poverty-adjusted academic achievement, and school environment — plus college readiness for high schools.
The highest-performing school in Lake St. Louis is Duello Elem. with a composite score of 6.9/10, demonstrating strong academic outcomes and school quality metrics.
Lake St. Louis is served by 1 school district: WENTZVILLE R-IV. These districts collectively serve 17,944 students.
Lake St. Louis's community shows 49% bachelor's degree attainment with a median household income of $134,932. The poverty rate in the area is 2.9%.
Browse the schools below to compare ratings, test scores, enrollment, and other key metrics. Use the filters to focus on specific school levels or types that match your family's needs.
Elementary Schools
2 schools| # | School | Rating |
|---|---|---|
| 1 | 647 students · Kindergarten–5th | 6.9 |
| 2 | 628 students · Kindergarten–5th | 4.4 |
High Schools
1 school| # | School | Rating |
|---|---|---|
| 1 | 1,669 students · 9th–12th | 6.9 |
Schools in Lake St. Louis
Lake St. Louis, Missouri · 3 schools
Community Demographics
Census ACS 2022 5-Year Estimates across 1 ZIP code
Median Income
$134,932
Median Home Value
$381,000
Median Rent
$1,654/mo
Population
27,893
College Educated
49%
Homeownership
81%
Avg Commute
27 min
Poverty Rate
2.9%
Community Profile
Lake St. Louis has a median household income of $134,932. It is a well-educated community where 49% of adults hold a bachelor's degree or higher. The median home value in the area is $381,000, with a median rent of $1,654/month. The local poverty rate of 2.9% is relatively low. The average commute for residents is 27 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Schools by Level
- State
- Missouri
- Elementary
- 2
- High
- 1
Resources
School District
Nearby Cities
Other Major Cities in Missouri
Top metros statewide by school count.
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateFrequently Asked Questions
Common questions about schools in Lake St. Louis, Missouri
How many schools are in Lake St. Louis, Missouri?
Lake St. Louis has 3 schools, including 3 public and 0 private schools spanning elementary, middle, and high school levels.
What is the average school rating in Lake St. Louis, Missouri?
The average MySchoolScout composite score for schools in Lake St. Louis is 6.1 out of 10, built from student growth, poverty-adjusted academic achievement, and school environment — plus college readiness for high schools.
What is the top-ranked school in Lake St. Louis, Missouri?
The top-ranked school in Lake St. Louis on MySchoolScout is Duello Elem. with a composite score of 6.9/10.
What is the best elementary school in Lake St. Louis, Missouri?
The top-ranked elementary school in Lake St. Louis on MySchoolScout is Duello Elem. with a composite score of 6.9/10.
What is the best high school in Lake St. Louis, Missouri?
The top-ranked high school in Lake St. Louis on MySchoolScout is Liberty High School with a composite score of 6.9/10.
How many school districts serve Lake St. Louis, Missouri?
Lake St. Louis is served by 1 school district: Wentzville R-iv.
What is the education level in Lake St. Louis, Missouri?
According to Census data, 49% of adults in Lake St. Louis have earned a bachelor's degree or higher.
What is the median income in Lake St. Louis, Missouri?
The median household income in Lake St. Louis is approximately $134,932 according to Census ACS 2022 estimates.
What is the student-teacher ratio in Lake St. Louis, Missouri?
The average student-teacher ratio across schools in Lake St. Louis is 15.5:1. This ratio varies by school, so families should check individual school profiles for specific classroom sizes.
How does MySchoolScout rate schools in Lake St. Louis, Missouri?
MySchoolScout rates schools using publicly available data from the NCES Common Core of Data and state education departments. Each school receives a 1-10 composite score built from Student Growth, Poverty-Adjusted Academic Achievement, and School Environment — plus College Readiness for high schools. Weights vary by school level, and equity data is shown for context but not scored.
Related reading
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.
Data from NCES Common Core of Data, Missouri Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.