Mary Lou Cowlishaw Elementary

Regular School · Naperville, IL

Mary Lou Cowlishaw Elementary is a regular school school in Naperville, Illinois, serving grades KG–05 with 589 students enrolled (SY 2024-2025). The student-teacher ratio is 14.5:1.

Level

Elementary

Grades

KG – 05

Enrollment

589

Teachers (FTE)

40.5

Student–Teacher Ratio

14.5:1

Status

Open

Lunch Program Participation

Yes participating without using any Provision or the CEO

Student Demographics (SY 2024-2025)

Race / Ethnicity	Students	Share
Asian	242	41%
White	139	24%
Hispanic/Latino	104	18%
Black or African American	74	13%
Two or more races	26	4%
American Indian / Alaska Native	4	1%
Total enrollment	589	294M / 295F

English Language Learners: 190 (32% of enrollment) · SY 2021–22

Academic Performance (SY 2021-2022)

Metric	This School	State Avg	Tested
Math Proficiency	45.0% +17.3pp	27.7%	224
Reading Proficiency	35.0% +2.3pp	32.7%	233

Source: EDFacts, SY 2020–2021. Suppressed values (e.g. <=10%) indicate fewer than the minimum reportable threshold.

Stanford Achievement Estimate

Pooled score across SY 2009–2022 (grades 3–8), expressed in grade levels relative to the national average. Positive = above average.

Overall (Math + ELA)

+0.56 grade levels

Math

+0.09 grade levels

Programs & Discipline

Gifted & Talented

Program offered

263 students enrolled

Out-of-School Suspensions

0.2% of enrollment · SY 2021–22

Chronically Absent

9.2% of enrollment · SY 2019–20

Source: Civil Rights Data Collection (CRDC), Office for Civil Rights & EDFacts.

Lunch Program (SY 2024-2025)

Category	Students	% of School
Total enrollment (est.)	589	100%

Contact & Location

1212 Sanctuary Ln

Naperville, IL 60540

Phone: (630)428-6100

http://www.ipsd.org

District

Indian Prairie CUSD 204

Per-pupil expenditure: $20,007

District enrollment: 25,687

Other Schools in District

Arlene Welch Elementary School Elementary
Brookdale Elementary School Elementary
Danielle-Joy Peterson Elem Sch Elementary
Fry Elementary School Elementary
Georgetown Elementary School Elementary
Gwendolyn Brooks Elementary Elementary
Longwood Elem School Elementary
May Watts Elementary School Elementary

View all 33 schools →

Related Data

Neighborhood demographics (ZIP 60540) → CensusDepth.com
Illinois population & income data → CensusDepth.com
Illinois teacher salaries → WageDepth.com

NCES ID

174169002094

Data sources: NCES CCD SY 2024-2025 (directory, staff, lunch), EDFacts SY 2020-21 (assessments), CRDC SY 2021-22 (programs & discipline), SEDA v6.0 (achievement estimates). Updated annually. NCES CCD