Average
#1885 of 3,813 schools in IL
Top 49% in state
Costello School
Elementary School · Lyons SD 103
4632 Clyde Ave, Lyons, IL 60534
Enrollment
221
Student-Teacher
8.8:1
Score
6.3
Grades
Pre-K – 5th
Enrollment
221
Student-Teacher
8.8:1
Score
6.3
Grades
Pre-K – 5th
Updated
2022-23
Updated 2022-23
How this school compares
In Lyons
#1 of 3
public schools
Illinois elementary schools
#1,162 of 2,326
In district
#2 of 6
Lyons SD 103
School environment
8.9 / 10
Exceptional
About Costello School
Costello School is an elementary school located in Lyons, Illinois, in Cook County. Situated at 4632 Clyde Avenue, the school serves students from pre-kindergarten through fifth grade. With a total enrollment of 221 students and a student-teacher ratio of 8.8:1, Costello offers individualized attention to help each child thrive academically.
Costello School has 25 full-time equivalent teachers dedicated to providing quality education in a supportive environment. While the school's MySchoolScout rating stands at 5.3 out of 10 and its state ranking is #2012 out of 3819 schools in Illinois (47th percentile), indicating room for improvement, Costello focuses on fostering student development through various learning opportunities. In terms of academic performance, the school’s ELA/Reading proficiency rate is 27% across all grades, while the Math proficiency rate is 15%.
These scores suggest that there are areas where students could benefit from additional support and resources to enhance their educational outcomes. Costello School is situated in a large suburban area, offering its students access to diverse community resources. The school’s setting provides a blend of residential neighborhoods and local amenities, contributing to a supportive learning environment for the young scholars it serves.
What Parents Should Know
With a student-teacher ratio of 8.8:1, Costello School offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
Data not available for this school
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Costello School — Students at Costello School score 20% proficient, which is above what's typical for similar communities (expected: 15%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
75.1%
Students qualifying for federal meal assistance
Test Scores IL EDFACTS (2021-22)
Based on 5 test records from IL state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 4.8/10.
How Costello School Compares
See how Costello School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 22% (2019) to 7.5% (2021). Reading/ELA proficiency has declined from 37% (2019) to 32% (2022).
Location
4632 Clyde Ave, Lyons, IL 60534
Nearby Alternatives
Families considering Costello School may also want to explore other elementary schools in the area. Congress Park Elem School (rated 8.9/10, 1.4 miles away, in nearby Brookfield), which scores notably higher. Another option is Central Elem School (rated 8.1/10, 1.6 miles away, in nearby Riverside), which scores notably higher. Additionally, Walsh Elem School (rated 7.8/10, 1.6 miles away, in nearby Summit), which scores notably higher. For more schools in Lyons, see our Lyons schools guide .
Nearby Schools
20 within 2.3 mi| School | Distance | Rating |
|---|---|---|
| Washington Middle School Lyons | 0.8 mi | 6.1 |
| J W Robinson Jr Elem School Lyons | 0.8 mi | 4.9 |
| Lincoln Elem School Brookfield | 0.8 mi | 5.8 |
| Riverside Brookfield Twp HS Riverside | 1.5 mi | 7.2 |
| Hollywood Elem School Brookfield | 1.5 mi | 6.2 |
| Central Elem School Riverside | 1.6 mi | 8.1 |
| TALLGRASS SUDBURY SCHOOL Riverside | 1.7 mi | 6.5 |
| L J Hauser Jr High School Riverside | 1.7 mi | 6.1 |
| ST MARY ELEMENTARY SCHOOL Riverside | 1.7 mi | 7.0 |
| ST PAUL LUTHERAN SCHOOL Brookfield | 1.6 mi | — |
| Walsh Elem School Summit | 1.6 mi | 7.8 |
| Congress Park Elem School Brookfield | 1.4 mi | 8.9 |
| S E Gross Middle School Brookfield | 1.8 mi | 5.3 |
| Home Elem School Stickney | 1.6 mi | 6.7 |
| MONTESSORI CHILDRENS COMMUNITY Brookfield | 1.9 mi | — |
| PECKWAS PREPARATORY ACADEMY Summit | 1.9 mi | 6.7 |
| Heritage Middle School Summit | 2.1 mi | 5.6 |
| Otis P Graves Elem School Summit | 2.1 mi | 7.0 |
| A F Ames Elem School Riverside | 2.4 mi | 6.5 |
| Blythe Park Elem School Riverside | 2.3 mi | 5.6 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 60534 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$63,827
Median Home Value
$243,500
Median Rent
$1,149/mo
Population
10,362
College Educated
16.4%
Homeownership
65%
Avg Commute
28.2 min
Poverty Rate
9.2%
Median Age
42
Community Profile
The community surrounding Costello School has a median household income of $63,827. It is a community where 16% of adults hold a bachelor's degree or higher. The median home value in the area is $243,500, with a median rent of $1,149/month. The local poverty rate of 9.2% is relatively low. The average commute for residents is 28 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Blackhawk Elem School Freeport, IL | 6.3 |
| Centennial Elem School Polo, IL | 6.3 |
| EMBERS ACADEMY Niles, IL | 6.3 |
| Finkl Elem School Chicago, IL | 6.3 |
| Higgins Elem Community Academy Chicago, IL | 6.3 |
| Holmes Elem School Harvey, IL | 6.3 |
Frequently Asked Questions
Common questions about Costello School
What grades does Costello School serve?
Costello School serves students in grades Pre-K through 5th.
How many students attend Costello School?
Costello School has an enrollment of approximately 221 students.
What is the student-teacher ratio at Costello School?
The student-teacher ratio at Costello School is 8.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Costello School rank in IL?
Costello School is ranked #1885 out of 3,813 schools in IL.
What is Costello School's MySchoolScout rating?
Costello School has a composite rating of 6.3 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Costello School?
Based on the most recent state assessment data, Costello School has 14.8% math proficiency and 27.0% reading/ELA proficiency.
Is Costello School a charter school?
No, Costello School is not a charter school. It is a traditional public school operated by the local school district.
Is Costello School a Title I school?
No, Costello School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Costello School?
75.1% of students at Costello School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
- County Safety
- Low (42/100K)
FBI UCR 2024. County-level only. Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Pre-K – 5th
- Enrollment
- 221
- Student-Teacher Ratio
- 8.8:1
- Teachers (FTE)
- 25
- Free/Reduced Lunch
- 75.1%
- Type
- regular
- Setting
- Large Suburb
- County
- Cook County
- Phone
- (708) 783-4300
- Data Year
- 2023–2024
Resources & Links
District
Lyons SD 103- District Enrollment
- 2,086
- Schools in District
- 6
- Per-Pupil Spending
- $19,997
- District Rank
- #2 of 6
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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