Costello School
🇺🇸 Official data · 2025Lyons, Illinois 60534 · Lyons SD 103
#1342 of 2,303 elementary schools in Illinois
#36364 of 50,301 nationally
About Costello School
Costello School is a public elementary located in Lyons, in the Lyons SD 103 school district of Illinois, United States. It caters for Grades PK–5. In 2025 it enrolled 228 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 33.3 out of 100, placing it in the lower 50% of elementary schools in United States and 1342nd of 2,303 ranked elementary schools in Illinois. Its strongest component is students per teacher (86th percentile), and its weakest is math proficiency (11th percentile).
Other published figures: enrollment 228.
There are 3 schools in Lyons; Costello School ranks 1st of 3 scored schools there.
Success Index (US) breakdown
Each component is a percentile against elementary schools across United States.
- Math proficiency (30%)22%
- Reading proficiency (30%)37%
- Community advantage (fewer free/reduced-price lunch) (25%)74.1%
- Students per teacher (15%)8.8
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Costello School by the official sources.
- Enrollment
- 228
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 74.1%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 8.8
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 37%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 22%
- Share of tested students proficient or above (all students, all grades).
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Schools near Costello School
Closest schools by straight-line distance, with their Success Index (US).
J W Robinson Jr Elem School
Lyons · Public elementary · Grades PK–5
251 students · 1.2 km away
Lincoln Elem School
Brookfield · Public elementary · Grades PK–5
366 students · 1.3 km away
Washington Middle School
Lyons · Public middle · Grades 6–8
659 students · 1.3 km away
Congress Park Elem School
Brookfield · Public elementary · Grades K–6
419 students · 2.3 km away
Riverside Brookfield Twp HS
Riverside · Public high · Grades 9–12
1,663 students · 2.5 km away
Hollywood Elem School
Brookfield · Public elementary · Grades PK–5
114 students · 2.5 km away
Walsh Elem School
Summit · Public elementary · Grades K–5
182 students · 2.6 km away
Home Elem School
Stickney · Public elementary · Grades PK–5
256 students · 2.6 km away
Central Elem School
Riverside · Public elementary · Grades PK–5
371 students · 2.6 km away
L J Hauser Jr High School
Riverside · Public middle · Grades 6–8
597 students · 2.7 km away
Similar schools
Public elementary schools in Illinois with a comparable Enrollment.
Lane Elem School
Alsip · Public elementary · Grades K–6
228 students
Jordan Elem School
Centralia · Public elementary · Grades 2–3
228 students
New Simpson Hill Dist 32
Tunnel Hill · Public elementary · Grades PK–8
228 students
Thurgood Marshall Elem School
Bellwood · Public elementary · Grades K–5
229 students
Central Elementary School
Camp Point · Public elementary · Grades 1–4
227 students
Diekman Elem School
Dolton · Public elementary · Grades PK–5
227 students
Frequently asked questions
Is Costello School a good school?
Costello School has a Success Index (US) of 33.3 out of 100 (Lower 50% of elementary schools in United States) and ranks #1342 of 2,303 in Illinois. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Costello School rank in Illinois?
Costello School ranks #1342 of 2,303 elementary schools in Illinois and #36364 of 50,301 nationally on the Success Index (US) (2025 data).
How many students attend Costello School?
Costello School had 228 students in 2025.
Is Costello School a elementary school or a high school?
Costello School is classified as a elementary covering Grades PK–5. It is a public school.
What other schools are near Costello School?
There are 10 schools within 15 km of Costello School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.