At-a-glance snapshot, compared to state averages where available
State avg: 373
228
Total Enrollment
State avg: 53%
74%+20.7pp
Free/Reduced Lunch
8.5:1
Student : Teacher
Public
Sector
No
Title I
District
Governance
Primary
Level
Overview
Costello School is a public primary in Lyons, Illinois. The school enrolls 228 students. It is part of the Lyons SD 103 district.
Source: NCES CCD (2025)
Strengths & Things to Consider
Indicators pulled CCD and benchmarked against Illinois state averages. This is not a ranking — different families value different things.
Strengths
Smaller-than-average class sizes
8.5:1 student-to-teacher ratio (US average ≈ 16:1)
Key Facts
SectorPublic
School TypeRegular
LevelPrimary
DistrictLyons SD 103
County17031
CityLyons
ZIP60534
CharterNo
MagnetNo
Title INo
NCES School ID172385003902
Student Demographics
Total Enrollment228
White9.2%
Hispanic / Latino83.8%
Black / African American3.1%
Asian1.8%
American Indian / Alaska Native0.4%
Native Hawaiian / Pacific Islander0.0%
Two or More Races1.8%
Race / Ethnicity Distribution
White
9.2%
Hispanic
83.8%
Black
3.1%
Asian
1.8%
Two+
1.8%
Source: NCES CCD (2025)
Equity & Title I
In the United States, Free/Reduced Lunch (FRL) eligibility is the primary federal proxy for student poverty. Schools with 40% or more FRL-eligible students typically qualify for Title I school-wide programs.