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Glenbrook South High School

Public Grades 9-12

20^th

SchoolDigger Rank ?

of 620 Illinois High Schools

Better than 97% of Illinois high schools

Summary

Glenbrook South High School is a large public high school in suburban Glenview, Illinois, serving grades 9–12 and 2,923 students in Glenbrook HSD 225. It is the largest of the six nearby high schools in this comparison. The clearest takeaway is that the school’s 2025–26 results are well above state proficiency levels on every supplied test, but below the district average on every one.

The school is strong against the state and near the top of its local group, but it does not lead its closest academic comparisons. Across grades 9–11, its average advantage over the state was 28 percentage points in ELA, 32 in math and 29 in science; its average shortfalls against the district were 3 points in ELA, 5 in math and 4 in science. It placed second among the nearby schools in 8 of 9 test comparisons, and third in grade 10 ELA: Glenbrook North High School led all nine, while Prospect High School also scored above Glenbrook South in grade 10 ELA. Chronic absenteeism is another concern relative to nearby peers: it was 21%, above the district’s 18% and the state’s 24%? Actually below state, but higher than Glenbrook North at 14% and Prospect at 16%.

Recent results are mixed: grade 10 PreACT math rose 6 percentage points and ELA rose 3, while grade 11 ACT math fell 3 and ELA fell 1. SchoolDigger ranks the school 20th of 620 Illinois schools, in the 97th percentile with 5 stars; that high overall standing has been steady in recent years. Its 2024–25 student–teacher ratio was 12.8, below the nearby-school average of 14.2. In 2021–22, 17% of students were free/reduced lunch eligible, compared with 28% on average at the other nearby schools. Group rankings offer a more mixed picture: SchoolDigger’s statewide ranking for how well the school serves disabled students fell from the 97th percentile in 2024–25 to the 73rd in 2025–26; its ranking for Asian students was at the 65th percentile in 2025–26.

2,923

Students ?

12.8

Student/teacher ratio ?

$29,096

Per pupil spending ?

16.6%

Free/reduced lunch eligible (2021-22) ?

99.2%

Measles protection (all grades) (2025-26)

4000 W Lake Ave
Glenview, IL 60026-1239

(847) 729-2000

District: Glenbrook HSD 225

Feeder schools for Glenbrook South High School:

Elementary:	Glen Grove Elementary School
	Henking Elementary School
	Henry Winkelman Elementary School
	Hoffman Elementary School
	More...
	Lyon Elementary School
	Pleasant Ridge Elementary School
	Westbrook Elementary School
Middle:	Attea Middle School
	Field School
	Springman Middle School

Racial breakdown:

White:

54.0%

Asian:

23.1%

Hispanic:

15.9%

See top rated Illinois high schools

Compare Glenbrook South High School to nearby high schools!

At a glance

▲ Ranking trend: Improving — 56th percentile in 2016 → 97th in 2026

Strengths

✓Test scores above the Illinois average (77% vs 47% meeting standards)

✓Ranks in the top 3% of Illinois high schools

✓98% graduate in 4 years — above the Illinois average (90%)

Worth a look

!Some student groups rank well below the school's overall statewide standing

Students meeting standards (2025-2026) ?

This school77%

District avg81%

Illinois avg47%

20^th of 620

Illinois public high schools ?

Top 3%▲ up 41 pts since 2016

From top 44% (2016) to top 3% (2026)

See the entire ranking list of Illinois High Schools →

★★★★★

SchoolDigger rating ?

2^nd of 2High Schools in the Glenbrook HSD 225

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	96.7	20 of 620	96.8%	★★★★★
2025	96.5	21 of 698	97.0%	★★★★★
2024	98.2	26 of 697	96.3%	★★★★★
2023	95.5	23 of 699	96.7%	★★★★★
2022	96.0	25 of 699	96.4%	★★★★★
2021	99.1	17 of 688	97.5%	★★★★★
2019	98.0	17 of 701	97.6%	★★★★★
2018	97.4	18 of 647	97.2%	★★★★★
2017	95.6	26 of 642	96.0%	★★★★★
2016	49.9	282 of 643	56.1%	★★★☆☆
2015	81.1	72 of 614	88.3%	★★★★☆
2014	95.1	20 of 670	97.0%	★★★★★
2013	95.2	17 of 670	97.5%	★★★★★
2012	94.8	17 of 665	97.4%	★★★★★
2011	91.9	31 of 655	95.3%	★★★★★
2010	93.6	22 of 643	96.6%	★★★★★
2009	91.2	33 of 632	94.8%	★★★★★
2008	91.9	26 of 624	95.8%	★★★★★
2007	95.2	18 of 612	97.1%	★★★★★
2006	94.3	18 of 596	97.0%	★★★★★
2005	92.6	20 of 590	96.6%	★★★★★
2004	94.9	13 of 592	97.8%	★★★★★
2003	95.6	16 of 586	97.3%	★★★★★

African American

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	95.6	14 of 323	95.7%	★★★★★
2024	84.0	29 of 299	90.3%	★★★★★
2023	98.2	12 of 301	96.0%	★★★★★
2022	67.1	61 of 294	79.3%	★★★★☆
2021	60.5	62 of 281	77.9%	★★★★☆
2019	99.6	7 of 299	97.7%	★★★★★

Asian

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	63.6	43 of 124	65.3%	★★★☆☆
2025	68.2	41 of 148	72.3%	★★★★☆
2024	71.6	42 of 137	69.3%	★★★★☆
2023	66.1	49 of 134	63.4%	★★★☆☆
2022	79.8	26 of 141	81.6%	★★★★☆
2021	77.5	26 of 135	80.7%	★★★★☆
2019	74.2	34 of 130	73.8%	★★★★☆
2018	75.8	31 of 132	76.5%	★★★★☆

Disabled

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	54.7	32 of 117	72.6%	★★★★☆
2025	96.5	15 of 491	96.9%	★★★★★
2024	70.7	76 of 429	82.3%	★★★★☆
2023	92.1	22 of 428	94.9%	★★★★★

English Language Learner

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	70.0	33 of 150	78.0%	★★★★☆
2025	78.9	32 of 284	88.7%	★★★★☆
2024	39.8	111 of 248	55.2%	★★★☆☆
2023	64.2	42 of 217	80.6%	★★★★☆
2022	90.3	9 of 205	95.6%	★★★★★
2021	80.2	14 of 189	92.6%	★★★★★
2019	52.0	49 of 183	73.2%	★★★★☆
2018	92.4	5 of 151	96.7%	★★★★★

Female

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	94.0	23 of 545	95.8%	★★★★★
2025	94.6	20 of 685	97.1%	★★★★★
2024	97.9	24 of 664	96.4%	★★★★★
2023	93.7	27 of 656	95.9%	★★★★★
2022	94.3	26 of 658	96.0%	★★★★★
2021	98.4	19 of 639	97.0%	★★★★★
2019	97.0	19 of 665	97.1%	★★★★★
2018	97.1	15 of 620	97.6%	★★★★★

Hispanic

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	72.6	51 of 268	81.0%	★★★★☆
2025	72.7	69 of 366	81.1%	★★★★☆
2024	69.5	66 of 336	80.4%	★★★★☆
2023	63.2	85 of 333	74.5%	★★★★☆
2022	69.5	70 of 335	79.1%	★★★★☆
2021	78.7	43 of 317	86.4%	★★★★☆
2019	60.0	94 of 317	70.3%	★★★★☆
2018	73.3	54 of 291	81.4%	★★★★☆

Homeless

Year	Avg score	Statewide rank	Illinois percentile	Rating
2024	99.2	3 of 125	97.6%	★★★★★

Low Socio Economic Status

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	81.4	60 of 478	87.4%	★★★★☆
2025	84.1	60 of 672	91.1%	★★★★★
2024	87.6	54 of 639	91.5%	★★★★★
2023	83.8	57 of 644	91.1%	★★★★★
2022	86.0	46 of 626	92.7%	★★★★★
2021	84.3	63 of 611	89.7%	★★★★☆
2019	88.6	35 of 639	94.5%	★★★★★
2018	87.6	30 of 585	94.9%	★★★★★

Male

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	96.1	19 of 521	96.4%	★★★★★
2025	96.7	22 of 685	96.8%	★★★★★
2024	97.6	26 of 668	96.1%	★★★★★
2023	95.9	22 of 668	96.7%	★★★★★
2022	96.1	22 of 664	96.7%	★★★★★
2021	99.0	16 of 653	97.5%	★★★★★
2019	97.9	17 of 675	97.5%	★★★★★
2018	96.6	18 of 619	97.1%	★★★★★

Multi-racial

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	84.1	14 of 130	89.2%	★★★★☆
2025	85.2	29 of 211	86.3%	★★★★☆
2024	88.6	21 of 182	88.5%	★★★★☆
2023	84.7	23 of 163	85.9%	★★★★☆
2022	90.3	15 of 170	91.2%	★★★★★
2021	89.5	21 of 160	86.9%	★★★★☆
2019	82.4	27 of 165	83.6%	★★★★☆
2018	79.4	31 of 154	79.9%	★★★★☆

Special Education

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	73.4	47 of 238	80.3%	★★★★☆
2025	99.2	8 of 527	98.5%	★★★★★
2024	96.7	30 of 482	93.8%	★★★★★
2023	98.8	17 of 476	96.4%	★★★★★
2022	97.9	16 of 493	96.8%	★★★★★
2021	94.4	17 of 453	96.2%	★★★★★
2019	86.9	31 of 473	93.4%	★★★★★
2018	81.1	40 of 374	89.3%	★★★★☆

White

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	96.2	21 of 515	95.9%	★★★★★
2025	96.6	18 of 564	96.8%	★★★★★
2024	96.3	29 of 554	94.8%	★★★★★
2023	94.3	24 of 557	95.7%	★★★★★
2022	92.4	40 of 560	92.9%	★★★★★
2021	97.9	20 of 553	96.4%	★★★★★
2019	97.8	13 of 552	97.6%	★★★★★
2018	97.1	13 of 548	97.6%	★★★★★

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

Homeless (2024)98th percentile~ school

Male (2026)96th percentile~ school

White (2026)96th percentile~ school

Female (2026)96th percentile~ school

African American (2025)96th percentile~ school

Multi-racial (2026)89th percentile-8 vs school

Low Socio Economic Status (2026)87th percentile-9 vs school

Hispanic (2026)81st percentile-16 vs school

Special Education (2026)80th percentile-17 vs school

English Language Learner (2026)78th percentile-19 vs school

Disabled (2026)73rd percentile-24 vs school

Asian (2026)65th percentile-31 vs school

By subject vs Illinois (2025-2026) ?

English Language Arts80%+30 vs state

Science77%+30 vs state

Mathematics72%+32 vs state

★

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Schools Near Glenbrook South High School

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Vaccination Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				PreACT Secure English Language Arts (2026)		PreACT Secure Mathematics (2026)		PreACT Secure Science (2026)		ACT English Language Arts (2026)	ACT Mathematics (2026)	ACT Science (2026)	Vaccination (2025-26)		Per Pupil Expenditures (2026)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/reduced lunch (2021-22)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	PreACT Secure English Language Arts 9th Grade	PreACT Secure English Language Arts 10th Grade	PreACT Secure Mathematics 9th Grade	PreACT Secure Mathematics 10th Grade	PreACT Secure Science 9th Grade	PreACT Secure Science 10th Grade	ACT English Language Arts 11th Grade	ACT Mathematics 11th Grade	ACT Science 11th Grade	Vaccination: Measles protection (all grades)	Vaccination: Exemption rate	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Glenbrook South High School	Public	9-12	4000 W Lake Ave	Glenview	60026	Cook County	Glenbrook HSD 225	No	(n/a)	No	Yes	(847) 729-2000	2,923	227	12.8	16.6%	1,577 (54.0%)	53 (1.8%)	466 (15.9%)	675 (23.1%)	2 (0.1%)	5 (0.2%)	145 (5.0%)	96.7	20^th of 620 public high schools	96.8%		96.5	21^st of 698 public high schools	97.0%	1	86.4	81.9	74.0	69.1	74.9	79.3	80.3	72.2	77.4	99.2%		$29,096	$407	$28,689
Glenbrook Off Campus	Public	9-12	1835 Landwehr Rd	Glenview	60026	Cook County	Glenbrook HSD 225	No	(n/a)	No	No	(847) 486-5700	0	9	.0	—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Glenbrook North High School	Public	9-12	2300 Shermer Rd	Northbrook	60062	Cook County	Glenbrook HSD 225	No	(n/a)	No	No	(847) 272-6400	2,111	161	13.0	4.1%	1,396 (66.1%)	19 (0.9%)	110 (5.2%)	475 (22.5%)	1 (0.0%)	6 (0.3%)	104 (4.9%)	99	10^th of 620 public high schools	98.4%		98.8	9^th of 698 public high schools	98.7%	1	94.8	88.5	87.0	75.1	86.3	85.0	86.7	85.5	87.0	98.4%		$31,166	$310	$30,857
Glenbrook Transition Services	Public	12	1200 Shermer Rd	Northbrook	60062	Cook County	Glenbrook HSD 225	No	(n/a)	(n/a)	(n/a)	(847) 486-4715	0			—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Glenbrook Transition Services - Intermediate	Public	12	1200 Shermer Rd	Northbrook	60062	Cook County	Glenbrook HSD 225	No	(n/a)	(n/a)	(n/a)	(847) 486-4715	0			—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Maine East High School	Public	9-12	2601 Dempster St	Park Ridge	60068	Cook County	Maine Township HSD 207	No	(n/a)	No	Yes	(847) 825-4484	1,921	136	14.1	37.6%	677 (35.2%)	104 (5.4%)	480 (25.0%)	601 (31.3%)	9 (0.5%)	8 (0.4%)	41 (2.1%)	67.5	161^st of 620 public high schools	74.0%		74.2	148^th of 698 public high schools	78.8%	13	67.9	59.3	42.7	38.4	55.4	58.8	58.8	42.7	53.3	99%		$24,347	$1,191	$23,156
Prospect High School	Public	9-12	801 W Kensington Rd	Mount Prospect	60056	Cook County	Township HSD 214	No	(n/a)	No	No	(847) 718-5200	2,245	130	17.3	16.4%	1,576 (70.2%)	48 (2.1%)	318 (14.2%)	189 (8.4%)	4 (0.2%)	2 (0.1%)	107 (4.8%)	95.7	22^nd of 620 public high schools	96.5%		96.1	24^th of 698 public high schools	96.6%	2	85.3	83.8	70.2	68.8	70.2	78.4	77.6	68.0	75.8	98%		$25,492	$816	$24,676
Wheeling High School	Public	9-12	900 S Elmhurst Rd	Wheeling	60090	Cook County	Township HSD 214	No	(n/a)	No	Yes	(847) 718-7000	1,743	114	15.2	51.8%	428 (24.6%)	54 (3.1%)	1,115 (64.0%)	104 (6.0%)	1 (0.1%)	0 (0.0%)	41 (2.4%)	47.8	307^th of 620 public high schools	50.5%		57.2	271^st of 698 public high schools	61.2%	36	61.9	43.1	41.7	35.3	49.3	42.1	42.8	36.7	41.8	99%		$29,909	$980	$28,929
Niles North High School	Public	9-12	9800 Lawler Ave	Skokie	60077	Cook County	Niles Township HSD 219	No	(n/a)	No	Yes	(847) 626-2011	1,999	173	11.5	31.6%	699 (35.0%)	205 (10.3%)	344 (17.2%)	640 (32.0%)	3 (0.2%)	8 (0.4%)	96 (4.8%)	83.5	76^th of 620 public high schools	87.7%		86.2	79^th of 698 public high schools	88.7%	3	73.9	67.8	59.0	51.9	62.5	61.7	65.2	54.0	62.6	98%		$39,017	$646	$38,371
Ombudsman Chicago Northwest	Public	9-12	7500 N Harlem Ave	Chicago	60631	Cook County	Chicago Public Schools District 299	No	(n/a)	No	(n/a)	(708) 669-7828	0	7	.0	—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)										94.8%

Frequently Asked Questions about Glenbrook South High School

What is the racial makeup of Glenbrook South High School?

Students at Glenbrook South High School are 54% White, 23% Asian, 16% Hispanic, 5% Two or more races, 2% African American.

How many students attend Glenbrook South High School?

In the 2024-25 school year, 2,923 students attended Glenbrook South High School.

Is Glenbrook South High School a good school?

Yes! Glenbrook South High School is one of the best high schools in the state. It ranks 20^th of 620 Illinois high schools.

What district is Glenbrook South High School in?

Glenbrook HSD 225

What schools feed into Glenbrook South High School?

Glenbrook South High School is fed by the following schools:

Elementary : Glen Grove Elementary School
Elementary : Henking Elementary School
Elementary : Henry Winkelman Elementary School
Elementary : Hoffman Elementary School
Elementary : Lyon Elementary School
Elementary : Pleasant Ridge Elementary School
Elementary : Westbrook Elementary School
Middle : Attea Middle School
Middle : Field School
Middle : Springman Middle School

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Latest Illinois data All new data »

2025–26 school spending dataNewOct 30, 2026

2025–26 attendance data, dropout rates & graduation ratesNewOct 30, 2026

2025–26 ACT, IAR, ISA & PreACT Secure test scoresNewOct 30, 2026

2013–14 through 2025–26 immunization rates (updated)Oct 19, 2026

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.