Costello School
Public
Elementary Grades PK–5
Part of Lyons SD 103
4632 Clyde Ave, Lyons, IL 60534 · (708) 783-4300
Community ratings
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Academic performance
Math proficiency7.5%
State average 25.9%
Reading / language arts12%
State average 30.7%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
228Students enrolled
9:1Student–teacher ratio
74%Free / reduced lunch
SuburbSetting
Regular SchoolSchool type
Enrollment by grade
Pre-K24
Kindergarten31
Grade 132
Grade 235
Grade 329
Grade 439
Grade 538
Students
Hispanic · 84%191
White · 9%21
Black · 3%7
Asian · 2%4
Two or more races · 2%4
American Indian/Alaska Native · 0%1
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
263’20
260’21
257’22
221’23
228’24
Location
4632 Clyde Ave Lyons
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.