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Average

#886 of 2,221 schools in MO

Top 40% in state

Duello Elem.

Elementary School · WENTZVILLE R-IV

1814 DUELLO RD, Lake St. Louis, MO 63367

Enrollment

647

Student-Teacher

14.4:1

Score

6.9

Grades

Kindergarten – 5th

Data vintage2022-23

How this school compares

Missouri schools

#886 of 2,221

In Lake St. Louis

#1 of 3

public schools

In district

#9 of 22

WENTZVILLE R-IV

Academic performance

7.6 / 10

Very Good

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Duello Elem.

6.9/10

Elementary School in Lake St. Louis · grades Kindergarten – 5th. Start here, then compare fit against nearby and district options.

Immanuel Lutheran School

5.8/10

1.2 mi away. Use as a geographic alternative in the same move search.

Timberland High

7.0/10

1.1 mi away. Use as a geographic alternative in the same move search.

About Duello Elem.

Duello Elem. is a public elementary school in Lake St. Louis, MO, part of WENTZVILLE R-IV. Duello Elem. serves approximately 647 students, and covers grades Kindergarten-5th, and has a 14.4:1 student-teacher ratio.

Duello Elem. has a current MySchoolScout rating of 6.9 out of 10 and ranks #886 of 2,221 schools in MO. Structured state assessment records for Duello Elem. show 57% math proficiency (multi-year average, 2009-2025) and 60% reading/ELA proficiency (multi-year average, 2009-2025).

How it comparesOn par with district
  • This school 6.9 · Average
  • District avg 6.6
  • MO avg 6.4

Score Breakdown

Full Profile · 3/3 metrics
Student Progress6.6Average50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data16
Annual Change-0.68 pts/yr
Data Period2009–2025
TrendStable
Academics7.6Very Good30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency55.2% (2025 MAP)
Reading/ELA Proficiency59.3% (2025 MAP)
Math vs. State Avg+7.4 pts
Reading vs. State Avg+13 pts
Overall Proficiency57% (2025 MAP, Math+ELA)
Expected (poverty-adj.)61% (model expectation from 2025 MAP)
vs. Expected-3.5 pts
Adjusted Percentile64th
Resources & Environment6.5Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio14.4:1
Per-Pupil Spending$12,463
Chronic Absenteeism10.2%

Duello Elem. — Students at Duello Elem. score 57% proficient, which is below what's typical for similar communities (expected: 61%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

6%

Students qualifying for federal meal assistance

Test Scores MO MAP (2024-25)

Math Proficiency 57.2% (multi-year average, 2009-2025)
School
State
47.4% (multi-year state average, 2024-2025)
ELA Proficiency 60.4% (multi-year average, 2009-2025)
School
State
47.7% (multi-year state average, 2024-2025)

Based on 40 test records from MO state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
55%
ELA
53%
2010
Math
64%
ELA
59%
2011
Math
62%
ELA
64%
2012
Math
66%
ELA
64%
2013
Math
63%
ELA
59%
2014
Math
55%
ELA
68%
2015
Math
58%
ELA
67%
2016
Math
67%
ELA
75%
2017
Math
59%
ELA
66%
2018
Math
60%
ELA
61%
2019
Math
60%
ELA
61%
2020*
Math
43%
ELA
55%
2021*
Math
43%
ELA
55%
2022
Math
46%
ELA
52%
2024
Math
59%
ELA
56.8%
2025
Math
55.2%
ELA
59.3%

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Source: EdFacts (NCES) and state assessment data. Growth score: 6.6/10.

How Duello Elem. Compares

See how Duello Elem. performs across key quality dimensions compared to state benchmarks.

Overall Score
6.9/10
60th percentile in MO
Academic
7.6/10
Very Good
Growth
6.6/10
Average
Environment
6.5/10
Average
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
6%
Teaching Staff
14:1 student-teacher ratio
45 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
10.2%

Programs & Offerings

Gifted & Talented Program Available
This school offers a gifted and talented program for qualifying students. · CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

1814 DUELLO RD, Lake St. Louis, MO 63367

Nearby Alternatives

Families considering Duello Elem. may also want to explore other elementary schools in the area. BOONE TRAIL ELEM. (rated 8.8/10, 1.3 miles away, in nearby Wentzville), which scores notably higher. Another option is DISCOVERY RIDGE ELEMENTARY (rated 8.3/10, 2.9 miles away, in nearby O'Fallon), which scores notably higher. Additionally, LAKEVIEW ELEMENTARY (rated 8.0/10, 2.9 miles away, in nearby Wentzville), which scores notably higher. For more schools in Lake St. Louis, see our Lake St. Louis schools guide .

Nearby Schools

20 within 3.7 mi
School Distance Rating
IMMANUEL LUTHERAN SCHOOL Wentzville 1.2 mi 5.8
IMMANUEL LUTHERAN SCHOOL Wentzville 1.2 mi 4.4
TIMBERLAND HIGH Wentzville 1.1 mi 7.0
WENTZVILLE SOUTH MIDDLE Wentzville 1.1 mi 6.6
BOONE TRAIL ELEM. Wentzville 1.3 mi 8.8
STONE CREEK ELEMENTARY Wentzville 1.8 mi 4.9
LIBERTY HIGH SCHOOL Lake St. Louis 2.4 mi 6.9
ST PATRICK SCHOOL Wentzville 2.7 mi 4.8
GREEN TREE ELEM. Lake St. Louis 2.4 mi 4.4
LAKEVIEW ELEMENTARY Wentzville 2.9 mi 8.0
HERITAGE INTERMEDIATE Wentzville 3.1 mi 5.6
HERITAGE PRIMARY Wentzville 3.1 mi 7.6
FRONTIER MIDDLE O'Fallon 3.0 mi 7.7
DISCOVERY RIDGE ELEMENTARY O'Fallon 2.9 mi 8.3
FUTURE APOSTLE ACADEMY O'Fallon 3.1 mi
WENTZVILLE MIDDLE Wentzville 3.4 mi 6.6
EMIL E. HOLT SR. HIGH Wentzville 3.5 mi 7.3
PRAIRIE VIEW ELEM. O'Fallon 3.6 mi 6.2
IMMACULATE CONCEPTION SCHOOL Dardenne Prairie 3.7 mi 4.9
BARFIELD EARLY CHILDHOOD CNTR O'Fallon 3.7 mi 5.5

Neighborhood Census ACS (2019-2023)

Census data for ZIP 63367 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$134,932

Median Home Value

$381,000

Median Rent

$1,654/mo

Population

27,893

College Educated

48.6%

Homeownership

81%

Avg Commute

26.8 min

Poverty Rate

2.9%

Median Age

39.7

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
BOONE ELEM. Troy, MO 6.9
CENTURY ELEM. Nixa, MO 6.9
GEGGIE ELEM. Eureka, MO 6.9
HIGH POINTE ELEM. Nixa, MO 6.9
STERLING ELEM. Warrensburg, MO 6.9
SYCAMORE HILLS ELEM. Independence, MO 6.9

Frequently Asked Questions

Common questions about Duello Elem.

What grades does Duello Elem. serve?

Duello Elem. serves students in grades Kindergarten through 5th.

How many students attend Duello Elem.?

Duello Elem. has an enrollment of approximately 647 students.

What is the student-teacher ratio at Duello Elem.?

The student-teacher ratio at Duello Elem. is 14.4:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Duello Elem. rank in MO?

Duello Elem. ranks #886 of 2,221 schools in MO.

What is Duello Elem.'s MySchoolScout rating?

Duello Elem. has a current MySchoolScout rating of 6.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Duello Elem.?

Based on loaded state assessment records, Duello Elem. has 57% math proficiency (multi-year average, 2009-2025) and 60% reading/ELA proficiency (multi-year average, 2009-2025).

Is Duello Elem. a charter school?

No, Duello Elem. is not a charter school. It is a traditional public school operated by the local school district.

Is Duello Elem. a Title I school?

No, Duello Elem. is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Duello Elem.?

6.0% of students at Duello Elem. qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
3 Car-Dependent
Bike Score
23 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
Kindergarten – 5th
Enrollment
647
Student-Teacher Ratio
14.4:1
Teachers (FTE)
45
Free/Reduced Lunch
6.0%
Type
regular
Setting
Large Suburb
County
St. Charles County
Chronic Absenteeism (SY 2022-23)
10.2%

District

WENTZVILLE R-IV
District Enrollment
17,944
Schools in District
22
Per-Pupil Spending
$12,463
District Rank
#9 of 22

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