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Wilmington High School

Q: Is Wilmington High School a good school?

Wilmington High School ranks 252 nd of 620 Illinois high schools. SchoolDigger rates this school 3 stars out of 5.

Public Grades 9-12

252^nd

SchoolDigger Rank ?

of 620 Illinois High Schools

Better than 59% of Illinois high schools

Summary

In Wilmington, Illinois, Wilmington High School serves 432 students in grades 9–12. Its latest results show a clear split by grade: 9th- and 10th-grade scores are often at or above state averages, while 11th-grade ACT scores are below the state in every subject. The most important concern is 11th-grade science, where 35% met the standard, compared with 48% statewide—a 13-point gap.

Wilmington’s strongest comparisons are in 10th-grade PreACT: 61% met the standard in ELA and 44% in math, both above state averages and second-highest among the six nearby schools. Its 9th-grade math and science results were weaker: math was the lowest among nearby schools at 47%, and science was also lowest at 42%. The 11th-grade ACT results were below nearby-school averages in ELA (44% versus 53%), math (36% versus 45%) and science (35% versus 51%). Attendance and graduation are brighter spots: chronic absenteeism was 16%, the lowest among nearby schools and below the state’s 24%; graduation was 93%, above the state’s 90%. The supplied test scores for Wilmington CUSD 209U match the school’s scores.

Results have shifted: from 2024–25 to 2025–26, 11th-grade ACT ELA fell 20 points and math fell 7 points, while 10th-grade PreACT ELA rose 7 points and math rose 9. SchoolDigger ranks Wilmington 252nd of 620 Illinois high schools, at the 59th percentile with 3 stars; its percentile fell 16 points from the previous year. The student-teacher ratio is 14.6:1, close to the nearby-school average of 14.3:1. In 2024–25, 44% of students were free/reduced lunch eligible, a higher rate than the comparable nearby schools. SchoolDigger’s 2024–25 statewide ranking for how well the school serves Special Education Students was at the 31st percentile, compared with the school’s overall 75th percentile that year.

432

Students ?

14.6

Student/teacher ratio ?

$20,140

Per pupil spending ?

43.8%

Free/reduced lunch eligible (2024-25) ?

98.8%

Measles protection (all grades) (2025-26)

209 Wildcat Ct
Wilmington, IL 60481-4500

(815) 926-1752

District: Wilmington CUSD 209U

Feeder schools for Wilmington High School:

Elementary:	Bruning Elementary School
	L J Stevens Intermediate School
Middle:	Wilmington Middle School

Racial breakdown:

White:

80.6%

Hispanic:

15.5%

Two or more races:

2.5%

See top rated Illinois high schools

Compare Wilmington High School to nearby high schools!

At a glance

▬ Ranking trend: Holding steady — 61st percentile in 2016 → 59th in 2026

Strengths

✓Above the Illinois median (59th percentile)

Worth a look

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

!Science scores 13 pts below the Illinois average

Students meeting standards (2025-2026) ?

This school47%

District avg47%

Illinois avg47%

252^nd of 620

Illinois public high schools ?

Top 41%▼ down 1 pts since 2016

See the entire ranking list of Illinois High Schools →

★★★★★

SchoolDigger rating ?

292^nd of 738Wilmington CUSD 209U 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
2026	54.5	252 of 620	59.4%	★★★☆☆
2025	69.3	176 of 698	74.8%	★★★★☆
2024	42.3	380 of 697	45.5%	★★☆☆☆
2023	67.2	184 of 699	73.7%	★★★★☆
2022	49.2	357 of 699	48.9%	★★☆☆☆
2021	53.4	270 of 688	60.8%	★★★☆☆
2019	58.3	263 of 701	62.5%	★★★☆☆
2018	37.3	426 of 647	34.2%	★★☆☆☆
2017	51.9	298 of 642	53.6%	★★★☆☆
2016	52.8	253 of 643	60.7%	★★★☆☆
2015	83.7	64 of 614	89.6%	★★★★☆
2014	63.8	246 of 670	63.3%	★★★☆☆
2013	64.4	263 of 670	60.7%	★★★☆☆
2012	61.7	266 of 665	60.0%	★★★☆☆
2011	73.9	173 of 655	73.6%	★★★★☆
2010	65.2	239 of 643	62.8%	★★★☆☆
2009	49.7	364 of 632	42.4%	★★☆☆☆
2008	50.7	361 of 624	42.1%	★★☆☆☆
2007	47.0	368 of 612	39.9%	★★☆☆☆
2006	51.6	335 of 596	43.8%	★★☆☆☆
2005	44.8	386 of 590	34.6%	★★☆☆☆
2004	44.4	391 of 592	34.0%	★★☆☆☆
2003	42.7	401 of 586	31.6%	★★☆☆☆

Disabled

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	36.1	290 of 491	40.9%	★★☆☆☆

Female

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	52.7	256 of 545	53.0%	★★★☆☆
2025	73.7	143 of 685	79.1%	★★★★☆
2024	45.3	328 of 664	50.6%	★★★☆☆
2023	68.4	169 of 656	74.2%	★★★★☆
2022	55.5	270 of 658	59.0%	★★★☆☆
2021	49.0	298 of 639	53.4%	★★★☆☆
2019	55.1	272 of 665	59.1%	★★★☆☆
2018	35.3	413 of 620	33.4%	★★☆☆☆

Hispanic

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	48.1	167 of 366	54.4%	★★★☆☆
2024	32.0	219 of 336	34.8%	★★☆☆☆
2023	52.5	132 of 333	60.4%	★★★☆☆
2022	30.1	236 of 335	29.6%	★★☆☆☆
2021	59.8	90 of 317	71.6%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	62.0	158 of 478	66.9%	★★★☆☆
2025	65.0	177 of 672	73.7%	★★★★☆
2024	70.0	134 of 639	79.0%	★★★★☆
2023	69.4	128 of 644	80.1%	★★★★☆
2022	30.5	447 of 626	28.6%	★☆☆☆☆
2021	39.3	350 of 611	42.7%	★★☆☆☆
2019	66.6	141 of 639	77.9%	★★★★☆
2018	43.8	326 of 585	44.3%	★★☆☆☆

Male

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	48.1	251 of 521	51.8%	★★★☆☆
2025	62.2	212 of 685	69.1%	★★★☆☆
2024	38.4	384 of 668	42.5%	★★☆☆☆
2023	63.0	205 of 668	69.3%	★★★☆☆
2022	40.8	392 of 664	41.0%	★★☆☆☆
2021	53.4	272 of 653	58.3%	★★★☆☆
2019	57.4	241 of 675	64.3%	★★★☆☆
2018	37.9	397 of 619	35.9%	★★☆☆☆

Special Education

Year	Avg score	Statewide rank	Illinois percentile	Rating
2025	27.2	366 of 527	30.6%	★★☆☆☆
2023	44.7	195 of 476	59.0%	★★★☆☆
2022	47.1	161 of 493	67.3%	★★★☆☆
2021	85.1	29 of 453	93.6%	★★★★★
2019	60.8	94 of 473	80.1%	★★★★☆

White

Year	Avg score	Statewide rank	Illinois percentile	Rating
2026	42.1	271 of 515	47.4%	★★☆☆☆
2025	58.1	203 of 564	64.0%	★★★☆☆
2024	29.1	382 of 554	31.0%	★★☆☆☆
2023	54.8	217 of 557	61.0%	★★★☆☆
2022	32.8	380 of 560	32.1%	★★☆☆☆
2021	36.9	317 of 553	42.7%	★★☆☆☆
2019	41.8	282 of 552	48.9%	★★☆☆☆
2018	21.6	458 of 548	16.4%	★☆☆☆☆

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)

Low Socio Economic Status (2026)67th percentile+8 vs school

Hispanic (2025)54th percentile-20 vs school

Female (2026)53rd percentile-6 vs school

Male (2026)52nd percentile-8 vs school

White (2026)47th percentile-12 vs school

Disabled (2025)41st percentile-34 vs school

Special Education (2025)31st percentile-44 vs school

By subject vs Illinois (2025-2026) ?

English Language Arts44%-6 vs state

Mathematics36%-4 vs state

Science35%-13 vs state

★

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Schools Near Wilmington 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 (2024-25)	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
Wilmington High School	Public	9-12	209 Wildcat Ct	Wilmington	60481	Will County	Wilmington CUSD 209U	No	(n/a)	No	Yes	(815) 926-1752	432	30	14.6	43.8%	348 (80.6%)	4 (0.9%)	67 (15.5%)	2 (0.5%)	0 (0.0%)	0 (0.0%)	11 (2.5%)	54.5	252^nd of 620 public high schools	59.4%		69.3	176^th of 698 public high schools	74.8%	76	65.4	61.3	46.9	44.1	42.0	48.4	44.0	36.0	35.0	98.8%		$20,140	$1,703	$18,437
Reed-Custer High School	Public	9-12	249 Comet Dr	Braidwood	60408	Will County	Reed Custer CUSD 255U	No	(n/a)	No	Yes	(815) 458-2166	397	34	11.6	41.8%	330 (83.1%)	1 (0.3%)	50 (12.6%)	0 (0.0%)	1 (0.3%)	0 (0.0%)	15 (3.8%)	60	217^th of 620 public high schools	65.0%		55.9	291^st of 698 public high schools	58.3%	74	66.0	59.6	48.0	40.4	59.0	52.1	49.4	28.1	42.7	97.7%		$22,658	$164	$22,494
Coal City High School	Public	9-12	655 W Division St	Coal City	60416	Grundy County	Coal City CUSD 1	No	(n/a)	No	Yes	(815) 634-2396	642	41	15.8	28.3%	554 (86.3%)	3 (0.5%)	71 (11.1%)	3 (0.5%)	1 (0.2%)	0 (0.0%)	10 (1.6%)	64.3	180^th of 620 public high schools	71.0%		69.6	175^th of 698 public high schools	74.9%	5	69.3	47.6	61.3	36.6	50.7	37.9	58.2	49.0	57.3	96.9%		$18,229	$582	$17,646
Minooka Community High School	Public	9-12	26655 W Eames St	Channahon	60410	Grundy County	Minooka CHSD 111	No	(n/a)	No	Yes	(815) 467-2140	2,918	164	17.7	—	1,939 (66.4%)	152 (5.2%)	674 (23.1%)	36 (1.2%)	2 (0.1%)	0 (0.0%)	115 (3.9%)	70.3	146^th of 620 public high schools	76.5%		76.9	128^th of 698 public high schools	81.7%	18	65.4	62.5	49.8	45.7	47.4	57.6	56.6	49.0	56.0	96.8%		$21,036	$256	$20,780
Gardner-South Wilmington Township High School	Public	9-12	500 E Main St	Gardner	60424	Grundy County	Gardner S Wilmington Township HSD 73	No	(n/a)	No	Yes	(815) 237-2176	154	18	8.5	29.9%	143 (92.9%)	1 (0.6%)	10 (6.5%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	47.7	310^th of 620 public high schools	50.0%		62.3	229^th of 698 public high schools	67.2%	81	62.5	43.3	52.5	40.0	42.5	43.3	35.9	41.0	33.3	97.5%		$27,913	$504	$27,409
Minooka Academy	Public	9-12	101 W Wapella St	Minooka	60447	Grundy County	Grundy/Kendall ROE	No	(n/a)	No	(n/a)	(815) 521-2371	0	0		—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Will County Detention Center 9-12	Public	9-12	3200 McDonough St	Joliet	60431	Will County	Joliet Township HSD 204	No	(n/a)	No	(n/a)	(815) 773-7233	0	2	.0	—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Lincoln Way West	Public	9-12	21701 S Gougar Rd	New Lenox	60451	Will County	Lincoln Way CHSD 210	No	(n/a)	No	Yes	(815) 717-3501	2,047	113	18.0	—	1,653 (80.8%)	34 (1.7%)	300 (14.7%)	10 (0.5%)	1 (0.0%)	0 (0.0%)	49 (2.4%)	86.7	61^st of 620 public high schools	90.2%		89.5	58^th of 698 public high schools	91.7%	3	75.6	76.2	63.8	55.7	56.0	66.8	65.9	59.6	65.1	97.7%		$16,553	$663	$15,889
Kankakee Area Career Center	Public	11-12	4083 N 1000w Rd	Bourbonnais	60914	Kankakee County	Iroquois/Kankakee ROE	No	(n/a)	No	(n/a)	(815) 939-4971	0	14	.0	—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Premier Academy Morris TAOEP	Public	6-12	7700 Ashley Rd	Morris	60450	Grundy County	Grundy/Kendall ROE	No	(n/a)	No	(n/a)	(815) 416-0377	0	3	.0	—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)

Frequently Asked Questions about Wilmington High School

What is the racial makeup of Wilmington High School?

Students at Wilmington High School are 81% White, 16% Hispanic, 3% Two or more races.

How many students attend Wilmington High School?

In the 2024-25 school year, 432 students attended Wilmington High School.

Is Wilmington High School a good school?

Wilmington High School ranks 252^nd of 620 Illinois high schools. SchoolDigger rates this school 3 stars out of 5.

What schools feed into Wilmington High School?

Wilmington High School is fed by the following schools:

Elementary : Bruning Elementary School
Elementary : L J Stevens Intermediate School
Middle : Wilmington Middle School

What district is Wilmington High School in?

Wilmington CUSD 209U

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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.