Costello School

4632 Clyde Ave
Lyons, IL 60534
(School attendance zone shown in map)
4/
10
Bottom 50%
Serving 257 students in grades Prekindergarten-5, Costello School ranks in the bottom 50% of all schools in Illinois for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 6-9% (which is lower than the Illinois state average of 28%). The percentage of students achieving proficiency in reading/language arts is 30-34% (which is approximately equal to the Illinois state average of 30%).
The student:teacher ratio of 9:1 is lower than the Illinois state level of 14:1.
Minority enrollment is 87% of the student body (majority Hispanic), which is higher than the Illinois state average of 55% (majority Hispanic).

Quick Stats (2024-25)

  • Grades: Prekindergarten-5
  • Enrollment: 257 students
  • Student:Teacher Ratio: 9:1
  • Minority Enrollment: 87%
  • : Bottom 50% in IL
  • : 6-9% (Btm 50%)
  • : 30-34% (Top 50%)
  • : 40-49% (Btm 50%)
  • Source: National Center for Education Statistics (NCES), IL Dept. of Education

Top Rankings

Costello School ranks among the top 20% of public schools in Illinois for:

Category
Attribute
Most improved public schools

School Overview

Costello School's student population of 257 students has declined by 14% over five school years.
The teacher population of 28 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Prekindergarten-5
Total Students
257 students
This chart displays total students of Costello School by year, with the latest 2022-23 school year data.
Gender %
This chart displays gender of Costello School
Total Classroom Teachers
28 teachers
This chart displays the total teachers of Costello School by year, with the latest 2022-23 school year data.
Students by Grade
This chart displays the students of Costello School by grade.

School Rankings

Costello School ranks within the bottom 50% of all 3,426 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Costello School is 0.34, which is less than the diversity score at state average of 0.70. The school's diversity has stayed relatively flat over five school years.
This School
State Level (IL)
#2081 out of 3426 schools
(Bottom 50%)
This chart displays the overall school rank of Costello School, with the latest 2021-22 school year data.
(20-21)
6-9%
28%
This chart displays the percentage of students that scored at or above 'proficient' levels in Math of Costello School and the percentage of public school students that scored at or above 'proficient' levels in Math of public schools in Illinois by year, with the latest 2020-21 school year data.
30-34%
30%
This chart displays the percentage of students that scored at or above 'proficient' levels in Reading/Language Arts of Costello School and the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of Illinois by year, with the latest 2021-22 school year data.
40-49%
50%
Student : Teacher Ratio
9:1
14:1
This chart displays the student teacher ratio of Costello School and the public school average student teacher ratio of Illinois by year, with the latest 2022-23 school year data.
American Indian
n/a
1%
Asian
n/a
6%
This chart displays the percentage of Asian students in Costello School and the percentage of Asian public school students in Illinois by year, with the latest 2021-22 school year data.
Hispanic
80%
27%
This chart displays the percentage of Hispanic students in Costello School and the percentage of Hispanic public school students in Illinois by year, with the latest 2022-23 school year data.
Black
5%
17%
This chart displays the percentage of Black students in Costello School and the percentage of Black public school students in Illinois by year, with the latest 2022-23 school year data.
White
13%
45%
This chart displays the percentage of White students in Costello School and the percentage of White public school students in Illinois by year, with the latest 2022-23 school year data.
Hawaiian
n/a
n/a
Two or more races
2%
4%
This chart displays the percentage of students of two or more races in Costello School and the percentage of public school students of two or more races in Illinois by year, with the latest 2022-23 school year data.
All Ethnic Groups
This chart displays the percentage breakdown of students of all ethnic groups in Costello School.
This chart displays the percentage breakdown of public school students of all ethnic groups in Illinois.
0.34
This chart displays the diversity score of Costello School and the public school average diversity score of Illinois by year, with the latest 2022-23 school year data.
Eligible for Free Lunch
68%
43%
This chart displays the percentage of students who is eligible for free lunch in Costello School and the percentage of public school students who is eligible for free lunch in Illinois by year, with the latest 2022-23 school year data.
Eligible for Reduced Lunch
13%
4%
This chart displays the percentage of students who is eligible for reduced lunch in Costello School and the percentage of public school students who is eligible for reduced lunch in Illinois by year, with the latest 2022-23 school year data.
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education

Frequently Asked Questions

What is Costello School's ranking?
Costello School is ranked #2081 out of 3,426 schools, which ranks it among the bottom 50% of public schools in Illinois.
What percent of students have achieved state testing proficiency in math and reading?
6-9% of students have achieved math proficiency (compared to the 28% IL state average), while 30-34% of students have achieved reading proficiency (compared to the 30% IL state average).
How many students attend Costello School?
257 students attend Costello School.
What is the racial composition of the student body?
80% of Costello School students are Hispanic, 13% of students are White, 5% of students are Black, and 2% of students are Two or more races.
What is the student:teacher ratio of Costello School?
Costello School has a student ration of 9:1, which is lower than the Illinois state average of 14:1.
What grades does Costello School offer ?
Costello School offers enrollment in grades Prekindergarten-5
What school district is Costello School part of?
Costello School is part of Lyons SD 103 School District.

School Calendar

View the Costello School yearly calendar below. Note key dates such as:

Event
Date
No School: Spring Break (Costello)
March 31, 2025 (Monday)
No School: Spring Break (Costello)
April 01, 2025 (Tuesday)
No School: Spring Break (Costello)
April 02, 2025 (Wednesday)
No School: Spring Break (Costello)
April 03, 2025 (Thursday)
No School: Spring Break (Costello)
April 04, 2025 (Friday)

School Reviews

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Quick Stats (2024-25)

  • Grades: Prekindergarten-5
  • Enrollment: 257 students
  • Student:Teacher Ratio: 9:1
  • Minority Enrollment: 87%
  • : Bottom 50%
  • : 6-9% (Btm 50%)
  • : 30-34% (Top 50%)
  • : 40-49% (Btm 50%)
  • Source: National Center for Education Statistics (NCES), IL Dept. of Education

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