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Grayslake Central High School

Q: Is Grayslake Central High School a good school?

Grayslake Central High School ranks 96 th of 698 Illinois high schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades 9-12

96^th

SchoolDigger Rank ?

of 698 Illinois High Schools

Better than 86% of Illinois high schools

Summary

Grayslake Central High School is a public high school serving grades 9-12 in Grayslake, Illinois, with a student population of 1,375. The school is part of the Grayslake CHSD 127 district, which is ranked 153 out of 811 districts in Illinois and rated 4 out of 5 stars by SchoolDigger. Grayslake Central High School has consistently been ranked among the top high schools in Illinois, with a current statewide ranking of 96 out of 698 high schools and a 4-star rating.

Grayslake Central High School stands out for its exceptional academic performance, consistently outperforming the state and district averages in standardized test scores. In the 2024-2025 school year, 73.7% of 11th-grade students were proficient or better in ACT/English Language Arts, compared to 65.8% for the district and 51.7% for the state. The school also boasts a 95.3% four-year graduation rate, significantly higher than the state average, and a low dropout rate of 0.6%. Additionally, the school performs exceptionally well across various student subgroups, ranking 46th out of 491 Illinois high schools for its performance with disabled students and 97th out of 323 Illinois high schools for its performance with African American students.

While Grayslake Central High School outperforms nearby schools like Grayslake North High School and Round Lake Senior High School in most metrics, it is on par with or slightly behind Mundelein Cons High School and Warren Township High School in terms of academic performance and other key indicators. The school's chronic absenteeism rate of 22.0% in the 2024-2025 school year, while lower than some nearby schools, is an area for improvement.

1,375

Students ?

12.9

Student/teacher ratio ?

$25,628

Per pupil spending ?

12.1%

Free/discounted lunch ?

400 N Lake St
Grayslake, IL 60030-1430

(847) 986-3300

District: Grayslake CHSD 127

Feeder schools for Grayslake Central High School:

Elementary:	Park East School
	Prairieview School
	Woodview School

Racial breakdown:

White:

57.5%

Hispanic:

22.3%

Asian:

7.9%

See top rated Illinois high schools

Compare Grayslake Central High School to nearby high schools!

At a glance

▲ Ranking trend: Improving — 65th percentile in 2015 → 86th in 2025

Strengths

✓Test scores above the Illinois average (60% vs 48% meeting standards)

✓Ranks in the top 14% of Illinois high schools

✓97% graduate in 4 years — above the Illinois average (89%)

Worth a look

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

Students meeting standards (2024-2025) ?

This school60%

District avg57%

Illinois avg48%

96^th of 698

Illinois public high schools ?

Top 14%▲ up 22 pts since 2015

From top 35% (2015) to top 14% (2025)

See the entire ranking list of Illinois High Schools →

★★★★★

SchoolDigger rating ?

1^st of 2High Schools in the Grayslake CHSD 127

153^rd of 811Grayslake CHSD 127 among Illinois districts

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
2025	82.7	96 of 698	86.2%	★★★★☆
2024	82.1	106 of 697	84.8%	★★★★☆
2023	83.8	89 of 699	87.3%	★★★★☆
2022	87.8	67 of 699	90.4%	★★★★★
2021	91.4	61 of 688	91.1%	★★★★★
2019	91.5	49 of 701	93.0%	★★★★★
2018	86.4	69 of 647	89.3%	★★★★☆
2017	90.9	48 of 642	92.5%	★★★★★
2016	63.7	156 of 643	75.7%	★★★★☆
2015	57.7	217 of 614	64.7%	★★★☆☆
2014	86.4	79 of 670	88.2%	★★★★☆
2013	86.3	74 of 670	89.0%	★★★★☆
2012	85.6	74 of 665	88.9%	★★★★☆
2011	82.9	90 of 655	86.3%	★★★★☆
2010	77.6	124 of 643	80.7%	★★★★☆
2009	85.1	70 of 632	88.9%	★★★★☆
2008	84.1	77 of 624	87.7%	★★★★☆
2007	80.2	105 of 612	82.8%	★★★★☆
2006	74.2	138 of 596	76.8%	★★★★☆
2005	66.2	198 of 590	66.4%	★★★☆☆
2004	73.3	139 of 592	76.5%	★★★★☆
2003	78.5	104 of 586	82.3%	★★★★☆

African American

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	61.6	97 of 323	70.0%	★★★★☆
2024	86.1	24 of 299	92.0%	★★★★★
2023	74.3	42 of 301	86.0%	★★★★☆
2022	71.5	47 of 294	84.0%	★★★★☆
2021	72.6	41 of 281	85.4%	★★★★☆
2019	98.0	10 of 299	96.7%	★★★★★
2018	65.4	60 of 253	76.3%	★★★★☆

Asian

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	52.1	83 of 148	43.9%	★★☆☆☆
2024	44.2	85 of 137	38.0%	★★☆☆☆
2023	60.1	56 of 134	58.2%	★★★☆☆
2022	46.1	83 of 141	41.1%	★★☆☆☆
2021	67.3	47 of 135	65.2%	★★★☆☆
2019	67.3	46 of 130	64.6%	★★★☆☆
2018	55.7	59 of 132	55.3%	★★★☆☆

Disabled

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	80.0	46 of 491	90.6%	★★★★★
2024	53.3	120 of 429	72.0%	★★★★☆
2023	84.6	33 of 428	92.3%	★★★★★

English Language Learner

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	49.3	114 of 284	59.9%	★★★☆☆
2024	28.6	158 of 248	36.3%	☆☆☆☆☆
2022	52.9	62 of 205	69.8%	★★★★☆
2021	62.2	31 of 189	83.6%	★★★★☆

Female

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	77.2	122 of 685	82.2%	★★★★☆
2024	82.0	102 of 664	84.6%	★★★★☆
2023	76.5	128 of 656	80.5%	★★★★☆
2022	78.2	125 of 658	81.0%	★★★★☆
2021	88.6	70 of 639	89.0%	★★★★☆
2019	87.6	63 of 665	90.5%	★★★★★
2018	79.7	106 of 620	82.9%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	65.8	97 of 366	73.5%	★★★★☆
2024	45.5	155 of 336	53.9%	★★★☆☆
2023	56.5	113 of 333	66.1%	★★★☆☆
2022	75.7	58 of 335	82.7%	★★★★☆
2021	39.2	176 of 317	44.5%	★★☆☆☆
2019	61.4	91 of 317	71.3%	★★★★☆
2018	60.1	86 of 291	70.4%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	67.4	150 of 672	77.7%	★★★★☆
2024	72.7	120 of 639	81.2%	★★★★☆
2023	61.0	200 of 644	68.9%	★★★☆☆
2022	69.8	131 of 626	79.1%	★★★★☆
2021	39.9	346 of 611	43.4%	★★☆☆☆
2019	49.4	302 of 639	52.7%	★★★☆☆
2018	68.2	121 of 585	79.3%	★★★★☆

Male

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	84.2	82 of 685	88.0%	★★★★☆
2024	79.4	108 of 668	83.8%	★★★★☆
2023	87.3	65 of 668	90.3%	★★★★★
2022	91.4	49 of 664	92.6%	★★★★★
2021	91.1	63 of 653	90.4%	★★★★★
2019	92.7	43 of 675	93.6%	★★★★★
2018	88.3	56 of 619	91.0%	★★★★★

Multi-racial

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	57.3	82 of 211	61.1%	★★★☆☆
2024	52.2	78 of 182	57.1%	★★★☆☆
2023	79.4	36 of 163	77.9%	★★★★☆
2022	76.7	36 of 170	78.8%	★★★★☆
2021	63.3	52 of 160	67.5%	★★★☆☆
2019	68.6	49 of 165	70.3%	★★★★☆
2018	75.8	36 of 154	76.6%	★★★★☆

Special Education

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	86.4	58 of 527	89.0%	★★★★☆
2024	58.1	136 of 482	71.8%	★★★★☆
2023	88.4	51 of 476	89.3%	★★★★☆
2022	63.9	85 of 493	82.8%	★★★★☆
2021	72.6	62 of 453	86.3%	★★★★☆
2019	87.1	30 of 473	93.7%	★★★★★
2018	72.3	56 of 374	85.0%	★★★★☆

White

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	81.7	87 of 564	84.6%	★★★★☆
2024	80.8	91 of 554	83.6%	★★★★☆
2023	79.7	87 of 557	84.4%	★★★★☆
2022	86.7	59 of 560	89.5%	★★★★☆
2021	92.9	48 of 553	91.3%	★★★★★
2019	91.1	42 of 552	92.4%	★★★★★
2018	84.8	67 of 548	87.8%	★★★★☆

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)

Disabled (2025)91st percentile+4 vs school

Special Education (2025)89th percentile+3 vs school

Male (2025)88th percentile~ school

White (2025)85th percentile~ school

Female (2025)82nd percentile-4 vs school

Low Socio Economic Status (2025)78th percentile-9 vs school

Hispanic (2025)73rd percentile-13 vs school

African American (2025)70th percentile-16 vs school

Multi-racial (2025)61st percentile-25 vs school

English Language Learner (2025)60th percentile-26 vs school

Asian (2025)44th percentile-42 vs school

By subject vs Illinois (2024-2025) ?

English Language Arts74%+22 vs state

Science65%+17 vs state

Mathematics50%+11 vs state

★

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Schools Near Grayslake Central 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 Immunizations Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				PreACT Secure English Language Arts (2025)		PreACT Secure Mathematics (2025)		PreACT Secure Science (2025)		ACT English Language Arts (2025)	ACT Mathematics (2025)	ACT Science (2025)	% Polio (2024)	% Measles (2024)	% Mumps (2024)	% Rubella (2024)	% Hepatitis B (2024)	% Varicella (2024)	% DTP (2024)	% Meningococcal (2024)	Per Pupil Expenditures (2025)
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/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	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	% Polio All Grades	% Measles All Grades	% Mumps All Grades	% Rubella All Grades	% Hepatitis B All Grades	% Varicella All Grades	% DTP All Grades	% Meningococcal All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Grayslake Central High School	Public	9-12	400 N Lake St	Grayslake	60030	Lake County	Grayslake CHSD 127	No	(n/a)	No	No	(847) 986-3300	1,375	106	12.9		791 (57.5%)	89 (6.5%)	306 (22.3%)	108 (7.9%)	2 (0.1%)	0 (0.0%)	71 (5.2%)	82.7	96^th of 698 public high schools	86.2%		82.1	106^th of 697 public high schools	84.8%	10	78.0	69.7	45.1	36.1	59.5	60.2	73.7	50.1	65.4	97.9	97.8	97.8	97.8	97.9	97.9	98.0	97.1	$25,628	$504	$25,123
Lake County High Schools Technical Campus	Public	9-12	19525 W Washington St	Grayslake	60030	Lake County	Lake ROE	No	(n/a)	No	(n/a)	(847) 223-6681	0	0	.0		0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Grayslake North High School	Public	9-12	1925 N IL Route 83	Grayslake	60030	Lake County	Grayslake CHSD 127	No	(n/a)	No	Yes	(847) 986-3100	1,208	97	12.5		578 (47.8%)	79 (6.5%)	441 (36.5%)	49 (4.1%)	6 (0.5%)	0 (0.0%)	48 (4.0%)	72.9	154^th of 698 public high schools	77.9%		85.1	88^th of 697 public high schools	87.4%	66	73.8	62.5	32.9	33.9	58.4	58.9	56.2	40.7	60.2	98.6	98.7	98.7	98.7	98.6	98.5	98.7	97.1	$26,914	$504	$26,410
Round Lake Senior High School	Public	9-12	800 High School Dr	Round Lake	60073	Lake County	Round Lake CUSD 116	No	(n/a)	No	Yes	(847) 270-9300	2,194	155	14.1	85.1%	205 (9.3%)	158 (7.2%)	1,750 (79.8%)	21 (1.0%)	8 (0.4%)	2 (0.1%)	50 (2.3%)	26.2	531^st of 698 public high schools	23.9%		22.5	520^th of 697 public high schools	25.4%	11	38.9	30.6	23.0	12.1	32.1	30.6	34.4	19.8	36.6	99.3	99.6	99.6	99.6	99.4	99.4	99.6	95.0	$20,358	$1,183	$19,175
Round Lake Transition Center	Public	12	801 Sunset Dr	Round Lake	60073	Lake County	Round Lake CUSD 116	No	(n/a)	No	No	(224) 842-2091	0	3	.0		0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)										100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Round Lake ALOP	Public	6-12	811 Sunset Dr	Round Lake	60073	Lake County	Lake ROE	No	(n/a)	No	(n/a)	(224) 842-2075	0	0			0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Lake County Collaborative Alop	Public	7-12	18160 W Gages Lake Rd	Grayslake	60030	Lake County	Lake ROE	No	(n/a)	No	(n/a)	(847) 548-8470	0	0			0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Lake County Cooperative ALOP	Public	6-12	18160 W Gages Lake Rd	Gages Lake	60030	Lake County	Lake ROE	No	(n/a)	No	(n/a)	(847) 986-2368	0	0			0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Warren Township High School	Public	9-12	34090 N Almond Rd	Gurnee	60031	Lake County	Warren Township HSD 121	No	(n/a)	No	Yes	(847) 548-6611	3,537	226	15.6		1,144 (32.3%)	536 (15.2%)	1,395 (39.4%)	328 (9.3%)	8 (0.2%)	16 (0.5%)	110 (3.1%)	71.1	163^rd of 698 public high schools	76.6%		68	172^nd of 697 public high schools	75.3%	9	70.4	62.4	39.3	36.6	56.9	57.8	53.6	40.5	48.4	99.3	99.2	98.9	99.2	99.3	98.1	99.4	98.5	$21,274	$493	$20,781
Bridges Program ALOP	Public	9-12	34090 N Almond Rd	Gurnee	60031	Lake County	Lake ROE	No	(n/a)	No	(n/a)	(847) 548-7103	0	0			0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)

Frequently Asked Questions about Grayslake Central High School

What district is Grayslake Central High School in?

Grayslake CHSD 127

What schools feed into Grayslake Central High School?

Grayslake Central High School is fed by the following schools:

Elementary : Park East School
Elementary : Prairieview School
Elementary : Woodview School

How many students attend Grayslake Central High School?

In the 2024-25 school year, 1,375 students attended Grayslake Central High School.

What is the racial makeup of Grayslake Central High School?

Students at Grayslake Central High School are 58% White, 22% Hispanic, 8% Asian, 6% African American, 5% Two or more races.

Is Grayslake Central High School a good school?

Grayslake Central High School ranks 96^th of 698 Illinois high schools. SchoolDigger rates this school 4 stars out of 5.

Rate Grayslake Central High School!

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Latest Illinois data All new data »

2024–25 school spending dataOct 30, 2025

2024–25 attendance data, dropout rates & graduation ratesOct 30, 2025

2024–25 ACT, IAR, ISA & PreACT Secure test scoresOct 30, 2025

2023–24 school spending dataOct 30, 2024

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.