Glenbard South High School

Summary:

Glenbard South High School is a public high school serving grades 9-12 in Glen Ellyn, Illinois, part of the Glenbard Township High School District 87. With a student population of 1,075, the school has consistently been ranked among the top high schools in Illinois, earning a 5-star rating from SchoolDigger.

Glenbard South High School stands out for its exceptional academic performance, consistently outperforming state and district averages in standardized test scores. In the 2023-2024 school year, the school had 40% of students proficient or better in SAT Mathematics and 48% proficient or better in SAT English Language Arts, compared to the district's 36.5% and 40.3%, respectively, and the state's 26.1% and 31.1%. The school also had 67.4% of students proficient or better in the ISA Science assessment, compared to the district's 62.1% and the state's 53.2%. Additionally, Glenbard South High School maintains high four-year graduation rates, ranging from 92.2% to 94.3% over the past five years, consistently outperforming the state average.

Glenbard South High School's strong performance extends across various student subgroups, including female students, male students, African American students, Hispanic students, White students, and students from low socioeconomic backgrounds. This suggests a commitment to equity and inclusive practices, making the school a standout educational institution in the region. While the school has experienced an increase in chronic absenteeism rates in recent years, reaching 22.9% in 2021-2022, the school's rates remain lower than the state average and are improving, with the 2023-2024 rate projected to be 13.8%.


Detail:

Public 9-12

 23W200 Butterfield Rd
       Glen Ellyn, IL  60137-6974


(630) 469-6500

District: Glenbard Township HSD 87

SchoolDigger Rank:
62nd of 697 Illinois High Schools

Per Pupil Expenditures:  $24,797 Help


Feeder schools for Glenbard South High School:

Elementary:    Arbor View Elementary School
    Briar Glen Elementary School
    Park View Elementary School
    Westfield Elementary School
Middle:    Glen Crest Middle School

Student/teacher ratio:  15.1 Help
Number of students:  1,075

Racial breakdown:

White:
58.1%
Hispanic:
15.2%
Asian:
13.7%
more

Free/discounted lunch recipients:  27.5% Help


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Performance Trends
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Compare Details Glenbard South High School ranks better than 91.1% of high schools in Illinois. It also ranks 2nd among 4 ranked high schools in the Glenbard Township HSD 87 School District. (See more...)
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Compare Details In 2024 the calculated Average Standard Score was 91.08. (See more...)
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The four-year cohort graduation rate measures the percentage of students at Glenbard South High School who earn a standard high school diploma within four years of starting ninth grade.
Help
The high school dropout rate measures the percentage of students who do not complete their high school education.
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Chronic absenteeism in a school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.
Student Body
Help
Compare Details Glenbard South High School has the largest high school student body size in the Glenbard Township HSD 87 School District.  (See more...)
Finance
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Compare Details The average total spent per student at Glenbard South High School is $24,797, which is the highest among 4 high schools in the Glenbard Township HSD 87 School District!
Schooldigger 2024 Rankings:

Glenbard South High School:

SchoolDigger ranks Glenbard South High School 62nd of 697 Illinois public high schools. (See Glenbard South High School in the ranking list.)

High School Test Score Ratings by Student Subgroup:


English Language Learner students:
Special Education students:
Low Socio Economic Status students:
Female students:
Disabled students:
Military Connected students:
Male students:
Asian students:
African American students:
Hispanic students:
White students:


Glenbard Township HSD 87:

SchoolDigger ranks Glenbard Township HSD 87 123rd of 813 Illinois school districts. (See district ranking list.)


What do you think?

Your rating for Glenbard South High School?

Rank History for Glenbard South High School

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Compare

Rank History for all students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2003 97.25 10th 586 98.3%
2004 93.98 18th 592 97.0%
2005 92.04 23rd 590 96.1%
2006 92.12 28th 596 95.3%
2007 93.68 23rd 612 96.2%
2008 91.10 35th 624 94.4%
2009 90.07 41st 632 93.5%
2010 93.73 21st 643 96.7%
2011 85.04 76th 655 88.4%
2012 88.07 57th 665 91.4%
2013 89.09 48th 670 92.8%
2014 83.19 104th 670 84.5%
2015 61.93 198th 614 67.8%
2016 59.17 193rd 643 70.0%
2017 87.18 65th 642 89.9%
2018 85.80 75th 647 88.4%
2019 87.35 72nd 701 89.7%
2021 91.48 60th 688 91.3%
2022 91.85 45th 699 93.6%
2023 89.37 58th 699 91.7%
2024 91.08 62nd 697 91.1%
See the entire list of Illinois High School Rankings!

Rank History for Multi-racial students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2018 66.83 50th 154 67.5%
2019 47.83 80th 165 51.5%
2022 75.37 41st 170 75.9%
See the entire list of Best Illinois High Schools for Multi-racial Students!

Rank History for English Language Learner students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2022 30.75 156th 205 23.9%
2024 54.93 65th 248 73.8%
See the entire list of Best Illinois High Schools for English Language Learner Students!

Rank History for Special Education students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2018 63.16 72nd 374 80.7%
2019 68.33 70th 473 85.2%
2021 29.28 270th 453 40.4%
2022 64.98 76th 493 84.6%
2023 88.91 50th 476 89.5%
2024 67.15 107th 482 77.8%
See the entire list of Best Illinois High Schools for Special Education Students!

Rank History for Low Socio Economic Status students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2018 63.50 165th 585 71.8%
2019 78.59 69th 639 89.2%
2021 74.19 98th 611 84.0%
2022 87.77 41st 626 93.5%
2023 88.48 40th 644 93.8%
2024 87.33 55th 639 91.4%
See the entire list of Best Illinois High Schools for Low Socio Economic Status Students!

Rank History for Female students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2018 83.50 83rd 620 86.6%
2019 86.47 69th 665 89.6%
2021 93.52 44th 639 93.1%
2022 82.75 99th 658 85.0%
2023 90.71 51st 656 92.2%
2024 92.93 53rd 664 92.0%
See the entire list of Best Illinois High Schools for Female Students!

Rank History for Disabled students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2023 88.75 23rd 428 94.6%
2024 73.99 68th 429 84.1%
See the entire list of Best Illinois High Schools for Disabled Students!

Rank History for Military Connected students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2019 16.38 18th 19 5.3%
2021 33.89 12th 22 45.5%
2022 65.55 8th 26 69.2%
2024 50.34 10th 23 56.5%
See the entire list of Best Illinois High Schools for Military Connected Students!

Rank History for Male students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2018 85.01 69th 619 88.9%
2019 84.93 82nd 675 87.9%
2021 85.28 80th 653 87.7%
2022 94.88 27th 664 95.9%
2023 85.41 72nd 668 89.2%
2024 85.41 82nd 668 87.7%
See the entire list of Best Illinois High Schools for Male Students!

Rank History for Asian students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2018 54.50 61st 132 53.8%
2019 61.34 54th 130 58.5%
2021 49.36 70th 135 48.1%
2022 61.03 58th 141 58.9%
2023 37.68 94th 134 29.9%
2024 46.56 75th 137 45.3%
See the entire list of Best Illinois High Schools for Asian Students!

Rank History for African American students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2018 46.99 106th 253 58.1%
2019 58.55 82nd 299 72.6%
2021 51.02 90th 281 68.0%
2022 41.31 144th 294 51.0%
2023 63.65 67th 301 77.7%
2024 52.63 89th 299 70.2%
See the entire list of Best Illinois High Schools for African American Students!

Rank History for Hispanic students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2018 60.89 81st 291 72.2%
2019 48.01 140th 317 55.8%
2021 54.58 100th 317 68.5%
2022 62.05 92nd 335 72.5%
2023 91.89 23rd 333 93.1%
2024 63.10 86th 336 74.4%
See the entire list of Best Illinois High Schools for Hispanic Students!

Rank History for White students at Glenbard South High School

Year Avg Standard Score Statewide Rank Total # Ranked High Schools IL State Percentile SchoolDigger Rating
2018 84.95 66th 548 88.0%
2019 90.37 45th 552 91.8%
2021 89.52 63rd 553 88.6%
2022 94.02 31st 560 94.5%
2023 85.88 58th 557 89.6%
2024 90.48 53rd 554 90.4%
See the entire list of Best Illinois High Schools for White Students!

Data source: test scores: Illinois State Board of Education, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Glenbard South High School Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
State Scores:    
  
Subgroup: 




Data source: Illinois State Board of Education

Review counts

All ratings (Avg rating: 2.3)
33%

0%

0%

0%

67%

  

by a student
Wednesday, August 5, 2020

Open Quote They let rapists stay in school and sports but make victims sign NDRs unless they wanna be suspended. They have a long history of racism and allowing sexual abuse to continue under the wire. Close Quote


by a citizen
Wednesday, August 5, 2020

Open Quote This school is horrible. I had gotten bullied to the point I had to leave that school. I told teacher and even the vice principal about the bullying that was going on and the vice principal had laughed and said it was funny what had happened to me. She was buddy buddy with the kids who had bullied me so she thought it would be fun to joke around with them about what they did to me instead of taking it seriously. I have current students messaging me asking about what school I transferred to because they can't take the bullying anymore. The teachers act as friends to the students. I see teachers taking pictures in class with students and having their arm around kids as if they are a kid as well. This is a bad place and am very glad I got out of that place. I know numerous people who have left this school. 13 in one year. Because of bullying. Do not let you're kid go here. Close Quote


by a student
Thursday, October 6, 2011

Open Quote It was a super competetive school when I attended from 2000-2004. I scored a 29 on my ACT, and didnt realize that it was a good score until after I graduated. Close Quote



Enrollment information for Glenbard South High School

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Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1988 996 47 73 21 2 n/a n/a 0 1139
1989 889 40 100 21 2 n/a n/a 0 1052
1990 852 42 113 30 2 n/a n/a 0 1039
1991 864 54 113 23 3 n/a n/a 0 1057
1992 846 50 136 32 4 n/a n/a 0 1068
1993 885 48 148 29 4 n/a n/a 0 1114
1994 933 39 146 35 4 n/a n/a 0 1157
1995 985 71 143 36 6 n/a n/a 0 1241
1996 985 71 143 36 6 n/a n/a 0 1241
1997 982 62 151 47 5 n/a n/a 0 1247
1998 1009 62 147 46 6 n/a n/a 0 1270
1999 1051 78 160 47 4 n/a n/a 0 1340
2000 1104 64 144 50 4 n/a n/a 0 1366
2001 1167 58 151 52 2 n/a n/a 0 1430
2002 1122 57 148 66 4 n/a n/a 0 1397
2003 1122 57 148 66 4 n/a n/a 0 1397
2004 1153 66 153 59 4 n/a n/a 0 1435
2005 1116 89 154 67 3 n/a n/a 6 1435
2006 1102 113 157 66 1 n/a n/a 15 1454
2007 1129 104 144 66 4 n/a n/a 10 1457
2008 1073 118 134 72 1 n/a n/a 29 1427
2009 1027 113 126 79 1 n/a n/a 31 1377
2010 1043 113 136 95 4 n/a n/a 37 1428
2011 978 121 147 117 3 1 23 0 1390
2012 946 119 153 123 3 1 22 0 1367
2013 873 104 168 129 3 1 37 0 1315
2014 823 112 151 140 3 1 43 0 1273
2015 789 103 151 140 3 1 42 0 1229
2016 749 111 152 141 2 1 45 0 1201
2017 727 117 134 148 2 1 43 0 1172
2018 734 107 140 138 2 0 37 0 1158
2019 713 113 137 163 2 0 36 0 1164
2020 697 96 143 172 1 1 39 0 1149
2021 683 83 158 149 1 2 39 0 1115
2022 637 92 152 167 1 5 39 0 1093
2023 625 89 147 163 1 4 46 0 1075

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at Glenbard South High School

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 1139 70.7 16.1 n/a
1989 1052 69.2 15.2 n/a
1990 1039 70.9 14.6 n/a
1991 1057 74.3 14.2 n/a
1992 1068 75.0 14.2 n/a
1993 1114 75.6 14.7 n/a
1994 1157 74.0 15.6 n/a
1995 1241 79.2 15.7 n/a
1996 1241 79.2 15.7 n/a
1997 1247 80.9 15.4 n/a
1998 1270 83.4 15.2 n/a
1999 1340 88.3 15.2 n/a
2000 1366 90.6 15.1 n/a
2001 1430 94.5 15.1 n/a
2002 1397 93.7 14.9 2.1
2003 1397 93.7 14.9 2.1
2004 1435 77.1 18.6 3.6
2005 1435 73.6 19.5 3.8
2006 1454 73.9 19.7 5.8
2007 1457 76.0 19.2 6.9
2008 1427 74.0 19.3 8.4
2009 1377 92.7 14.9 12
2010 1428 93.3 15.2 14.5
2011 1390 86.1 16.1 14.7
2012 1367 84.2 16.2 17
2013 1315 180.9 7.2 24
2014 1273 80.6 15.7 24.5
2015 1229 79.0 15.5 26.5
2016 1201 77.0 15.5 21.8
2017 1172 72.8 16.0 26.5
2018 1158 71.0 16.2 23.9
2019 1164 68.4 17.0 25.6
2020 1149 75.3 15.2 25.6
2021 1115 n/a n/a n/a
2022 1093 70.4 15.5 24.4
2023 1075 70.8 15.1 27.5

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio Glenbard South High School

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Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 1139 70.7 16.1 n/a
1989 1052 69.2 15.2 n/a
1990 1039 70.9 14.6 n/a
1991 1057 74.3 14.2 n/a
1992 1068 75.0 14.2 n/a
1993 1114 75.6 14.7 n/a
1994 1157 74.0 15.6 n/a
1995 1241 79.2 15.7 n/a
1996 1241 79.2 15.7 n/a
1997 1247 80.9 15.4 n/a
1998 1270 83.4 15.2 n/a
1999 1340 88.3 15.2 n/a
2000 1366 90.6 15.1 n/a
2001 1430 94.5 15.1 n/a
2002 1397 93.7 14.9 2.1
2003 1397 93.7 14.9 2.1
2004 1435 77.1 18.6 3.6
2005 1435 73.6 19.5 3.8
2006 1454 73.9 19.7 5.8
2007 1457 76.0 19.2 6.9
2008 1427 74.0 19.3 8.4
2009 1377 92.7 14.9 12
2010 1428 93.3 15.2 14.5
2011 1390 86.1 16.1 14.7
2012 1367 84.2 16.2 17
2013 1315 180.9 7.2 24
2014 1273 80.6 15.7 24.5
2015 1229 79.0 15.5 26.5
2016 1201 77.0 15.5 21.8
2017 1172 72.8 16.0 26.5
2018 1158 71.0 16.2 23.9
2019 1164 68.4 17.0 25.6
2020 1149 75.3 15.2 25.6
2021 1115 n/a n/a n/a
2022 1093 70.4 15.5 24.4
2023 1075 70.8 15.1 27.5

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.

Immunization Rates

Glenbard South High School

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Compare
YearPolioMeaslesMumpsRubellaHepatitis BVaricellaDTPMeningococcal
201599.1%98.8%98.8%98.8%98.9%99.1%99.1%
201698.7%98.4%98.4%98.4%98.6%98.5%28.2%
201798.6%98.2%98.2%98.2%97.5%97.4%98.6%29.1%
201898.5%98.1%98.1%98.1%97.7%97.8%98.4%28.6%
201999.0%99.0%99.0%99.0%98.9%99.0%99.0%52.2%
202198.7%98.7%98.7%98.7%98.7%98.5%98.7%97.0%
202298.8%98.7%98.7%98.7%98.7%98.7%98.7%98.2%
202399.1%99.0%99.0%99.0%99.1%98.8%99.1%98.1%
202498.3%98.2%98.2%98.2%98.5%97.9%98.5%97.5%

Data source: Illinois State Board of Education
Finances

Per Pupil Expenditures for Glenbard South High School

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YearExpenditures from Federal FundsExpenditures from State and Local FundsTotal Expenditures Per Pupil (All Funds)
2019 $127 (0.7%) $18,897 (99.3%) $19,024
2020 $305 (1.5%) $19,643 (98.5%) $19,948
2021 $406 (1.9%) $20,750 (98.1%) $21,156
2022 $406 (1.9%) $20,750 (98.1%) $21,156
2023 $630 (2.7%) $22,815 (97.3%) $23,445
2024 $620 (2.5%) $24,176 (97.5%) $24,796

Data source: Illinois Department of Education
Pre and Post Pandemic Data

Impact of COVID-19 on Glenbard South High School

The coronavirus has had a profound impact on education in America. Learning shifted online overnight, attendance numbers dwindled, and enrollment decreased. SchoolDigger.com is making it easier for you to better assess how COVID-19 has impacted your school. Through the collection of pre-pandemic (2019) and current data, SchoolDigger.com is sharing test scores, enrollment numbers and school demographics from schools across the country – and we make it easy to see how impacted schools compare locally and statewide.

Rankings

Rank
Pre-pandemic (2018-2019)
Rank
Post pandemic (2022-2023)
Change (%)
Ranks 72nd of 701 High schoolsRanks 58th of 699 High schools
 2%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
11th Grade Mathematics (Glenbard South High School)49.447.3
 2.1%
   11th Grade Mathematics (Glenbard Township HSD 87)43.137.5
 5.6%
   11th Grade Mathematics (Illinois)34.826.7
 8.1%
11th Grade English Language Arts (Glenbard South High School)47.346.5
 0.8%
   11th Grade English Language Arts (Glenbard Township HSD 87)44.340.2
 4.1%
   11th Grade English Language Arts (Illinois)36.731.6
 5.1%
End of Course Science (Glenbard South High School)53.467.5
 14.1%
   End of Course Science (Glenbard Township HSD 87)44.561.1
 16.6%
   End of Course Science (Illinois)36.452.2
 15.8%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students11641075
 7.6%
African American11389
 21.2%
American Indian21
 50%
Asian137147
 7.3%
Hispanic163163
Pacific Islander04
White713625
 12.3%
Two or More Races3646
 27.8%
% Free/Discounted Lunch Recipients25.6%27.5%
 1.9%


Schools Near Glenbard South High School









Frequently Asked Questions about Glenbard South High School

Students at Glenbard South High School are 58% White, 15% Hispanic, 14% Asian, 8% African American, 4% Two or more races.

In the 2022-23 school year, 1,075 students attended Glenbard South High School.

Yes. Glenbard South High School ranks in the top 8.9% of Illinois high schools.


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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau, the Illinois Department of Public Health and the Illinois State Board of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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