Mary Lou Cowlishaw Elementary
Public
Elementary Grades K–5
Part of Indian Prairie CUSD 204
1212 Sanctuary Ln, Naperville, IL 60540 · (630) 428-6100
Community ratings
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Academic performance
Math proficiency45%
State average 25.9%
Reading / language arts35%
State average 30.7%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
589Students enrolled
15:1Student–teacher ratio
25%Free / reduced lunch
CitySetting
Regular SchoolSchool type
Enrollment by grade
Kindergarten94
Grade 194
Grade 287
Grade 3109
Grade 4105
Grade 5100
Students
Asian · 41%242
White · 24%139
Hispanic · 18%104
Black · 13%74
Two or more races · 4%26
American Indian/Alaska Native · 1%4
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
674’20
602’21
548’22
564’23
589’24
Location
1212 Sanctuary Ln Naperville
Neighbor reviews
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School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Academic scores from the EDFacts via Urban Institute Education Data Portal (SY2020-21). Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.