SchoolRow
#703

Mary Lou Cowlishaw Elementary

Naperville, IL · Indian Prairie CUSD 204

Regular public school · Grades K - 5 · City, midsize

703rd of 2,105 Illinois elementary schools statewide · better than 67% Declining

1212 Sanctuary Ln, Naperville, IL 60540

(630)428-6100NCES ID 174169002094Directory 202324

564
Students
2023–24 enrollment
13.1:1
Student / teacher ratio
25%
Free / reduced-price lunch
low-income indicator
10.8%
Chronically absent
IL average 25%

SchoolRow ranks Mary Lou Cowlishaw Elementary 703rd of 2,105 Illinois elementary schools for 2024–25, based on Illinois Report Card 2024–25 English and Math results — better than 67% of elementary schools statewide. Its statewide percentile went from 78th in 2019 to 67th in 2025 — declining.

Statewide percentile by year
25%50%75%67%201920202025no testing 2020–21

Percent meeting or exceeding the state standard, Illinois Report Card 2024–25

English Language Arts
Mary Lou Cowlishaw Elementary
55%
IL average
52%
Math
Mary Lou Cowlishaw Elementary
52%
IL average
38%
Science
Mary Lou Cowlishaw Elementary
52%
IL average
45%
English Language Arts over time Mary Lou Cowlishaw Elementary IL average
25%50%75%55%52%201920202025no testing 2020–21
Math over time Mary Lou Cowlishaw Elementary IL average
25%50%75%52%38%201920202025no testing 2020–21
Science over time Mary Lou Cowlishaw Elementary IL average
25%50%75%52%45%201920202025no testing 2020–21
ELA by race, over time
25%50%75%69%58%50%16%13%201920202025no testing 2020–21

Black (last reported 2023) and Two or more races (last reported 2023) stop before 2025: IL suppresses a group once too few of its students are tested, so the line ends rather than the school having stopped testing.

Math by race, over time
25%50%75%70%55%36%25%6%201920202025no testing 2020–21

Black (last reported 2023) and Two or more races (last reported 2023) stop before 2025: IL suppresses a group once too few of its students are tested, so the line ends rather than the school having stopped testing.

Science by race, over time
25%50%75%67%58%57%36%201920202025no testing 2020–21

Hispanic (last reported 2024) and Black (last reported 2022) stop before 2025: IL suppresses a group once too few of its students are tested, so the line ends rather than the school having stopped testing.

Percent meeting or exceeding the state standard, by student race and ethnicity. Only groups IL reports for this school appear — small groups are suppressed at the source to protect student privacy, so a missing line means too few testers, not zero. Tap a group to compare it with the IL average for that same group.

Racial and ethnic breakdown of 564 students (202324, NCES) — history since 1997, with comparable seven-category changes from 2010

Hispanic20%White21%Asian43%Black12%
Hover the pie for details
categories changedHispanic 20%White 21%Asian 43%Black 12%76%15%19972023
GroupTrend20102023Change
Asian32.0%42.7% 10.7 pts
White32.1%20.7% 11.4 pts
Hispanic14.4%19.9% 5.5 pts
Black15.9%11.9% 4.0 pts
Two or more races5.6%4.6% 1.0 pts

NCES history for this school begins in 1997. Race categories changed by 2010: earlier data combines Asian and Pacific Islander students and does not consistently identify multiracial students. The chart retains that history, while the change table uses 2010 onward.

Typical home value $652K in zip 60540 as of 2026-05 · trend since 2000

$164K$328K$492K$656K$625K200020052010201520202025

Data Provided by Zillow Group

See recently sold homes in 60540 on Zillow →

Closest same-level schools, with 2024–25 state rank · ▲▼ = points better or worse than Mary Lou Cowlishaw Elementary

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What school district is Mary Lou Cowlishaw Elementary in?

Mary Lou Cowlishaw Elementary is part of the Indian Prairie CUSD 204 district in Naperville, Illinois.

Is Mary Lou Cowlishaw Elementary a good school?

SchoolRow ranks Mary Lou Cowlishaw Elementary 703rd of 2,105 Illinois elementary schools (better than 67% statewide) based on 2024–25 test results (Illinois Report Card 2024–25).

What is the racial makeup of Mary Lou Cowlishaw Elementary?

Asian 43%, White 21%, Hispanic 20%, Black 12% (564 students, 2023–24).

How much do homes near Mary Lou Cowlishaw Elementary cost?

The typical home value in zip code 60540 is $652K as of 2026-05 (Zillow ZHVI).

Sources: state education department data (Illinois Report Card 2024–25, low-income, chronic absenteeism), National Center for Education Statistics via the Urban Institute (enrollment, demographics, staffing), Zillow Group (home values). Rankings are computed by SchoolRow from state English and Math results within grade level; they measure test performance, not everything that makes a school good.