Best High Schools in Illinois

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Find the best Illinois high schools with SchoolDigger.com! Focused on test scores for accurate rankings, our user-friendly site simplifies your search. Empower your decisions by exploring top-rated schools, only on SchoolDigger.com - the ultimate guide to K-12 schools!

Year after year, SchoolDigger is always the first to publish Illinois test scores and rankings. Other sites use stale test score data that are several years old! Be in the know with the very latest performance metrics.

The list is updated annually upon the release of the PreACT Secure and ACT test scores by the Illinois State Board of Education. The most recent update was on Thursday, October 30, 2025.

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School														Students/Teachers											Per Pupil Expenditures (2025)							Ranking (2025 vs 2024)					ID
Rank (of 698)	School	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	# Students	Full-time Teachers	Student/ Teacher Ratio	Free/Disc Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Per Pupil Expenditures: Total	Personnel from Federal Funds	Non-Personnel from Federal Funds	Total from Federal Funds	Personnel from State and Local Funds	Non-Personnel from State and Local Funds	Total from State and Local Funds	Average Standard Score (2025)	Average Standard Score (2024)	Rank (2024)	Rank Change from 2024	SchoolDigger Rating (2025)	ID
31	Lemont Township High School	Public	9-12	800 Porter St	Lemont	60439	Cook County	Lemont Township HSD 210	No	(n/a)	No	Yes	(630) 257-5838	1,284	85	15	17.0%	1,032 (80.4%)	10 (0.8%)	149 (11.6%)	51 (4.0%)	0 (0.0%)	0 (0.0%)	42 (3.3%)	$23,067			$476			$22,591	95.3	95.3	43	12		172250002508
32	Maine South High School	Public	9-12	1111 S Dee Rd	Park Ridge	60068	Cook County	Maine Township HSD 207	No	(n/a)	No	No	(847) 825-7711	2,494	151	16.5		1,944 (77.9%)	21 (0.8%)	301 (12.1%)	134 (5.4%)	1 (0.0%)	8 (0.3%)	84 (3.4%)	$22,417			$456			$21,961	95.2	96.1	38	6		172409005031
33	Oak Park & River Forest High School	Public	9-12	201 N Scoville Ave	Oak Park	60302	Cook County	Oak Park - River Forest School District 200	No	(n/a)	No	Yes	(708) 383-0700	3,307	242	13.6	18.1%	1,680 (50.8%)	561 (17.0%)	534 (16.1%)	105 (3.2%)	1 (0.0%)	4 (0.1%)	351 (10.6%)	$26,340			$797			$25,543	95	98.9	18	15		172928003070
34	Community High School District 99 - North High School	Public	9-12	4436 Main St	Downers Grove	60515	DuPage County	Chsd 99	No	(n/a)	No	No	(630) 795-8401	2,082	152	13.7		1,443 (69.3%)	90 (4.3%)	307 (14.7%)	138 (6.6%)	3 (0.1%)	5 (0.2%)	95 (4.6%)	$24,548			$410			$24,138	95	96.8	32	2		171257001518
35	Barrington High School	Public	9-12	616 W Main St	Barrington	60010	Lake County	Barrington CUSD 220	No	(n/a)	No	Yes	(847) 381-1400	2,718	168	16.1		1,507 (55.4%)	63 (2.3%)	544 (20.0%)	481 (17.7%)	9 (0.3%)	3 (0.1%)	111 (4.1%)	$20,961			$312			$20,649	94.6	97.3	30	5		170505000188
36	Lincoln-Way East High School	Public	9-12	201 Colorado Ave	Frankfort	60423	Will County	Lincoln Way CHSD 210	No	(n/a)	No	Yes	(815) 464-4130	2,696	149	18.1		1,873 (69.5%)	298 (11.1%)	315 (11.7%)	102 (3.8%)	4 (0.1%)	0 (0.0%)	104 (3.9%)	$14,613			$609			$14,004	94.2	98.7	20	16		172307002544
37	Glenbard West High School	Public	9-12	670 Crescent Blvd	Glen Ellyn	60137	DuPage County	Glenbard Township HSD 87	No	(n/a)	No	No	(630) 469-8600	2,330	130	17.8	28.7%	1,246 (53.5%)	91 (3.9%)	592 (25.4%)	322 (13.8%)	3 (0.1%)	4 (0.2%)	72 (3.1%)	$19,883			$376			$19,506	94	93.8	52	15		171683001991
38	Lyons Township High School	Public	9-12	100 S Brainard Ave	La Grange	60525	Cook County	Lyons Township HSD 204	No	(n/a)	No	Yes	(708) 579-6300	3,706	267	13.8		2,360 (63.7%)	125 (3.4%)	990 (26.7%)	89 (2.4%)	2 (0.1%)	2 (0.1%)	134 (3.6%)	$26,164			$506			$25,659	93.8	96.8	33	5		172388002601
39	J B Conant High School	Public	9-12	700 E Cougar Trl	Hoffman Estates	60169	Cook County	Township HSD 211	No	(n/a)	No	No	(847) 755-3610	2,633	161	16.3	35.4%	1,127 (42.8%)	86 (3.3%)	522 (19.8%)	765 (29.1%)	5 (0.2%)	1 (0.0%)	123 (4.7%)	$21,408			$650			$20,758	93.6	95.1	46	7		173045003165
40	Highland Park High School	Public	9-12	433 Vine Ave	Highland Park	60035	Lake County	Township HSD 113	No	(n/a)	No	Yes	(224) 765-2001	1,661	137	12.1		990 (59.6%)	28 (1.7%)	520 (31.3%)	37 (2.2%)	1 (0.1%)	3 (0.2%)	82 (4.9%)	$35,205			$401			$34,804	93.5	95.1	45	5		171908002194

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About our rankings:

Schooldigger calculates school rankings based on PreACT Secure English Language Arts, PreACT Secure Mathematics, PreACT Secure Science, ACT English Language Arts, ACT Mathematics, ACT Science test scores released by the Illinois State Board of Education.
These rankings were last updated on October 30, 2025, and are based on the most recent test scores available. We update rankings as we receive new test scores from the Illinois State Board of Education, usually on a yearly basis.
Our sources of data include the National Center for Education Statistics, U.S. Department of Education and the Illinois State Board of Education.
For more information about our ranking process, please see our Ranking FAQ. Details about our methodology are here.

Educational resources:

No Child Left Behind (NCLB): A Comprehensive Analysis of Its Impact on Education

Per-Pupil Spending: Understanding the Breakdown of Federal, State, and Local Funds

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.