Very Good
#908 of 3,813 schools in IL
Top 24% in state
Mary Lou Cowlishaw Elementary
Elementary School · Indian Prairie Cusd 204 · Naperville, IL
An Indian Prairie Cusd 204 elementary school where students score 7 points above what's typical for similar communities.
1212 Sanctuary Ln, Naperville, IL 60540
- Math 45% proficient (2021)
- Reading 42% proficient (2022)
- 13.1:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Mary Lou Cowlishaw Elementary score 44% proficient, which is above what's typical for similar communities (expected: 36%).
2022 EdFacts proficiency
Most recent published year. School vs. IL average.
Trend
↓ DecliningProficiency has fallen 6 points since 2019, to 42% in 2022, across a 14-year record (2009–2022).
Show all 14 years
Multi-year averages used by the rating model: math 64% (multi-year average, 2009-2021) · reading/ELA 60% (multi-year average, 2009-2022)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 27 test records from IL state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
28.5%
Students qualifying for federal meal assistance
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 rateThe neighborhood
Where Mary Lou Cowlishaw Elementary sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Chicago map →
Getting around & local context
- Walk 55Somewhat Walkable
- Transit 24Minimal Transit
- Bike 48Somewhat Bikeable
- City Safety: Elevated968/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Naperville), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$155,866
Median home value
$504,900
Median rent
$1,982/mo
College educated
71.8%
Homeownership
75.2%
Poverty rate
3.7%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 60540; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Icn Noor AcademyPrivate · tuition | 5.8private | PK–3 | 0.4 mi | 50 | Compare → |
| Icn Noor AcademyPrivate · tuition | 6.2private | PK–3 | 0.4 mi | 50 | Compare → |
| Icn Noor AcademyPrivate · tuition | 4.5private | PK–3 | 0.4 mi | 39 | Compare → |
| May Watts Elementary SchoolEnrollment path unverified | 8.0 | K–5 | 0.9 mi | 620 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Indian Prairie Cusd 204
- Schools in district
- 34
- Rank in district
- #24 of 32
- District spending per student
- $18,127NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 4.4%Census SAIPE · 2024
Mary Lou Cowlishaw Elementary is listed in Indian Prairie CUSD 204; a district label does not verify attendance for an address.
About Mary Lou Cowlishaw Elementary
Mary Lou Cowlishaw Elementary is a public elementary school in Naperville, IL, part of Indian Prairie Cusd 204, serving approximately 564 students in grades Kindergarten-5th with a 13.1:1 student-teacher ratio. It holds a MySchoolScout rating of 7.5 out of 10 and ranks #908 of 3,813 schools in IL. State assessment records show 64% math proficiency (multi-year average, 2009-2021) and 60% reading/ELA proficiency (multi-year average, 2009-2022).
Frequently asked questions
Common questions about Mary Lou Cowlishaw Elementary
What grades does Mary Lou Cowlishaw Elementary serve?
Mary Lou Cowlishaw Elementary serves students in grades Kindergarten through 5th.
How many students attend Mary Lou Cowlishaw Elementary?
Mary Lou Cowlishaw Elementary has an enrollment of approximately 564 students.
What is the student-teacher ratio at Mary Lou Cowlishaw Elementary?
The student-teacher ratio at Mary Lou Cowlishaw Elementary is 13.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mary Lou Cowlishaw Elementary rank in IL?
Mary Lou Cowlishaw Elementary ranks #908 of 3,813 schools in IL.
What is Mary Lou Cowlishaw Elementary's MySchoolScout rating?
Mary Lou Cowlishaw Elementary has a current MySchoolScout rating of 7.5 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 Mary Lou Cowlishaw Elementary?
Based on loaded state assessment records, Mary Lou Cowlishaw Elementary has 64% math proficiency (multi-year average, 2009-2021) and 60% reading/ELA proficiency (multi-year average, 2009-2022).
Is Mary Lou Cowlishaw Elementary a charter school?
No, Mary Lou Cowlishaw Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is Mary Lou Cowlishaw Elementary a Title I school?
No, Mary Lou Cowlishaw Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Mary Lou Cowlishaw Elementary?
28.5% of students at Mary Lou Cowlishaw Elementary qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- Kindergarten – 5th
- Enrollment
- 564
- Student-Teacher Ratio
- 13.1:1
- Teachers (FTE)
- 43
- Type
- regular
- Setting
- Midsize City
- County
- DuPage County
- Chronic Absenteeism (SY 2022-23)
- 23.2%
- Phone
- (630) 428-6100
- Area population (ZIP 60540)
- 42,660
- Area average commute
- 28.7 min
- Area median age
- 41.2
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2021 EdFacts · Low confidence
- Older source: 2021 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2022 EdFacts · Low confidence
- Older source: 2022 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 60540; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2021, multi-year average, 2009-2022; directory SY 2023–24
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