Is Crystal Lake Central High School a good school?

Crystal Lake Central High School ranks 116 th of 697 Illinois high schools. SchoolDigger rates this school 4 stars out of 5.

How many students attend Crystal Lake Central High School?

In the 2023-24 school year, 1,498 students attended Crystal Lake Central High School.

What is the racial makeup of Crystal Lake Central High School?

Students at Crystal Lake Central High School are 67% White, 27% Hispanic, 3% Asian, 2% African American, 1% Two or more races.

What schools feed into Crystal Lake Central High School?

Crystal Lake Central High School is fed by the following schools: Elementary : South Elementary School Elementary : West Elementary School Middle : Richard F Bernotas Middle School

Crystal Lake Central High School

Summary:

Crystal Lake Central High School is a public high school located in Crystal Lake, Illinois, serving grades 9-12 with a total enrollment of 1,470 students. The school is part of the Community High School District 155, which is ranked 107 out of 813 districts in Illinois and has a 4-star rating from SchoolDigger.

Crystal Lake Central High School consistently ranks in the top 20% of Illinois high schools, with a statewide ranking between 116-155 out of 697-699 schools in recent years. The school's performance on standardized tests, such as the SAT and Illinois Science Assessment (ISA), is generally above the state and district averages. For example, in 2023-2024, 33.2% of 11th-grade students were proficient or better in SAT Mathematics, compared to 34.4% for the district and 26.1% for the state. The school's four-year graduation rate has been consistently high, ranging from 92.6% to 97.1% in recent years, which is above the state average. However, the school has experienced a significant increase in chronic absenteeism, from 11.5% in 2019-2020 to 28.4% in 2022-2023, which is higher than the state average and the nearby schools within the same district.

When compared to other nearby schools outside the district, such as Huntley High School and Dundee-Crown High School, Crystal Lake Central High School's performance is not as strong, particularly in terms of test scores and graduation rates. Additionally, the school's performance for African American students and English Language Learners is relatively lower, ranking in the bottom 30-40% of Illinois high schools, indicating a need for targeted interventions to ensure equitable outcomes for all students.

Detail:

Public 9-12

45 W Franklin Ave
Crystal Lake, IL 60014-6160

(815) 459-2505

District: Chsd 155

SchoolDigger Rank:
116^th of 697 Illinois High Schools

Per Pupil Expenditures: $18,933

Feeder schools for Crystal Lake Central High School:

Elementary:	South Elementary School
	West Elementary School
Middle:	Richard F Bernotas Middle School

Student/teacher ratio: 17.9

Number of students: 1,498

Racial breakdown:

White:

66.6%

Hispanic:

27.3%

Asian:

2.9%

Free/discounted lunch recipients: 35.8%

See top rated Illinois high schools

Compare Crystal Lake Central High School to nearby high schools!

Performance Trends

Compare Details Crystal Lake Central High School ranks better than 83.4% of high schools in Illinois. It also ranks 3^rd among 4 ranked high schools in the Chsd 155 School District. (See more...)

Compare Details In 2024 the calculated Average Standard Score was 79.04. (See more...)

The four-year cohort graduation rate measures the percentage of students at Crystal Lake Central High School who earn a standard high school diploma within four years of starting ninth grade.

The high school dropout rate measures the percentage of students who do not complete their high school education.

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

Compare Details Crystal Lake Central High School has the largest high school student body size in the Chsd 155 School District. Racial makeup is: White (66.6%), Hispanic (27.3%), Asian (2.9%). (See more...)

Compare Details 35.8% of students are receiving a free or discounted lunch. This is the highest percentage in the Chsd 155 School District. (See more...)

Teachers

Compare Details The student/teacher ratio at Crystal Lake Central High School is 17.9, which is the highest among 5 high schools in the Chsd 155 School District! (See more...)

Compare Crystal Lake Central High School employs 83.6 full-time teachers.

Finance

Compare Details The average total spent per student at Crystal Lake Central High School is $18,933. 3 high schools in the Chsd 155 School District spend more per student.

Schooldigger 2024 Rankings:

Crystal Lake Central High School:

SchoolDigger ranks Crystal Lake Central High School 116^th of 697 Illinois public high schools. (See Crystal Lake Central 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:

Male students:

Asian students:

Hispanic students:

White students:

Chsd 155:

SchoolDigger ranks Chsd 155 107^th of 813 Illinois school districts. (See district ranking list.)

Average Parent Rating:

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Rank History for Crystal Lake Central High School

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Rank History for all students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile
2003	81.23	83^rd	586	85.8%
2004	82.31	73^rd	592	87.7%
2005	75.96	120^th	590	79.7%
2006	79.42	103^rd	596	82.7%
2007	77.39	124^th	612	79.7%
2008	83.38	81^st	624	87.0%
2009	81.22	96^th	632	84.8%
2010	79.88	108^th	643	83.2%
2011	79.61	112^th	655	82.9%
2012	74.30	160^th	665	75.9%
2013	79.41	126^th	670	81.2%
2014	79.51	131^st	670	80.4%
2015	32.33	411^th	614	33.1%
2016	41.01	387^th	643	39.8%
2017	74.04	131^st	642	79.6%
2018	79.19	112^th	647	82.7%
2019	75.87	134^th	701	80.9%
2021	76.76	128^th	688	81.4%
2022	78.47	119^th	699	83.0%
2023	71.51	155^th	699	77.8%
2024	79.04	116^th	697	83.4%

See the entire list of Illinois High School Rankings!

Rank History for Multi-racial students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile	SchoolDigger Rating
2018	76.75	35^th	154	77.3%
2019	49.40	77^th	165	53.3%

See the entire list of Best Illinois High Schools for Multi-racial Students!

Rank History for English Language Learner students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile
2019	43.92	78^th	183	57.4%
2021	32.79	86^th	189	54.5%
2022	59.25	50^th	205	75.6%
2023	47.50	86^th	217	60.4%
2024	28.56	158^th	248	36.3%

See the entire list of Best Illinois High Schools for English Language Learner Students!

Rank History for Special Education students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile
2018	70.63	60^th	374	84.0%
2019	78.03	48^th	473	89.9%
2021	55.22	126^th	453	72.2%
2022	66.22	70^th	493	85.8%
2023	79.20	71^st	476	85.1%
2024	72.13	98^th	482	79.7%

See the entire list of Best Illinois High Schools for Special Education Students!

Rank History for Low Socio Economic Status students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile
2018	61.45	182^nd	585	68.9%
2019	52.99	267^th	639	58.2%
2021	44.13	300^th	611	50.9%
2022	64.96	164^th	626	73.8%
2023	58.89	215^th	644	66.6%
2024	63.77	171^st	639	73.2%

See the entire list of Best Illinois High Schools for Low Socio Economic Status Students!

Rank History for Female students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile
2018	73.59	141^st	620	77.3%
2019	71.12	164^th	665	75.3%
2021	78.38	119^th	639	81.4%
2022	79.60	116^th	658	82.4%
2023	73.34	141^st	656	78.5%
2024	78.00	121^st	664	81.8%

See the entire list of Best Illinois High Schools for Female Students!

Rank History for Disabled students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile	SchoolDigger Rating
2023	76.13	52^nd	428	87.9%
2024	68.43	81^st	429	81.1%

See the entire list of Best Illinois High Schools for Disabled Students!

Rank History for Male students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile
2018	80.62	97^th	619	84.3%
2019	77.69	119^th	675	82.4%
2021	71.12	150^th	653	77.0%
2022	74.08	125^th	664	81.2%
2023	66.24	176^th	668	73.7%
2024	76.74	129^th	668	80.7%

See the entire list of Best Illinois High Schools for Male Students!

Rank History for Asian students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile
2021	34.55	97^th	135	28.1%
2023	42.88	85^th	134	36.6%
2024	51.19	64^th	137	53.3%

See the entire list of Best Illinois High Schools for Asian Students!

Rank History for African American students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile	SchoolDigger Rating
2021	23.07	241^st	281	14.2%

See the entire list of Best Illinois High Schools for African American Students!

Rank History for Hispanic students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile
2018	52.54	114^th	291	60.8%
2019	45.73	144^th	317	54.6%
2021	43.43	148^th	317	53.3%
2022	56.56	117^th	335	65.1%
2023	55.48	115^th	333	65.5%
2024	49.93	135^th	336	59.8%

See the entire list of Best Illinois High Schools for Hispanic Students!

Rank History for White students at Crystal Lake Central High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	IL State Percentile
2018	74.48	120^th	548	78.1%
2019	76.46	110^th	552	80.1%
2021	76.29	112^th	553	79.7%
2022	79.87	91^st	560	83.8%
2023	63.41	179^th	557	67.9%
2024	76.08	110^th	554	80.1%

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.

Data source: Illinois State Board of Education

Review counts

All ratings (Avg rating: 5)

100%

Reviews:

by a parent
Monday, February 25, 2013

Fantastic High School! It really made my oldest daughter ready for college and pushed her to take the most challenging classes that she could handle. Central encouraged her to get involved in activities at the school and to also volunteer in the community as well. I have another daughter who is currently attending and I wouldn't dream of ever changing her from this high school. Wonderful school spirit from the students, staff and parents at this school. Close Quote

Enrollment information for Crystal Lake Central High School

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Year	White	African American	Asian	Hispanic	American Indian	Pacific Islander	Two or More Races	Not Specified	Total
1988	1268	6	5	19	2	n/a	n/a	0	1300
1989	1248	3	5	19	2	n/a	n/a	0	1277
1990	1228	2	9	10	n/a	n/a	n/a	0	1249
1991	1268	0	10	18	0	n/a	n/a	0	1296
1992	1310	2	11	20	0	n/a	n/a	0	1343
1993	1383	3	10	22	0	n/a	n/a	0	1418
1994	1421	6	18	26	0	n/a	n/a	0	1471
1995	1601	6	26	47	1	n/a	n/a	0	1681
1996	1601	6	26	47	1	n/a	n/a	0	1681
1997	1773	6	31	51	0	n/a	n/a	0	1861
1998	1060	1	10	28	0	n/a	n/a	0	1099
1999	1021	8	19	59	1	n/a	n/a	0	1108
2000	1122	8	21	82	1	n/a	n/a	0	1234
2001	1126	8	21	88	2	n/a	n/a	0	1245
2002	1245	6	29	99	3	n/a	n/a	0	1382
2003	1245	6	29	99	3	n/a	n/a	0	1382
2004	1224	7	32	124	2	n/a	n/a	0	1389
2005	1245	12	30	138	3	n/a	n/a	2	1430
2006	1191	17	25	176	2	n/a	n/a	0	1411
2007	1204	25	20	183	2	n/a	n/a	0	1434
2008	1220	25	24	170	3	n/a	n/a	15	1457
2009	1230	20	29	178	1	n/a	n/a	17	1475
2010	1284	19	33	176	2	n/a	n/a	31	1545
2011	1251	24	30	211	5	0	51	0	1572
2012	1293	22	28	197	5	0	43	0	1588
2013	1267	25	31	208	5	0	35	0	1571
2014	1222	25	29	222	4	0	35	0	1537
2015	1190	28	31	256	5	0	25	0	1535
2016	1174	24	33	270	7	0	32	0	1540
2017	1125	23	22	306	4	0	65	0	1545
2018	1097	25	23	299	6	0	58	0	1508
2019	1049	33	23	316	5	0	50	0	1476
2020	986	23	23	349	3	2	35	0	1421
2021	1037	28	32	372	4	2	11	0	1486
2022	1053	29	39	406	6	3	9	0	1545
2023	985	26	38	406	4	4	7	0	1470
2024	997	28	44	409	3	2	15	0	1498

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 Crystal Lake Central High School

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1988	1300	66.2	19.6	n/a
1989	1277	74.0	17.2	n/a
1990	1249	71.7	17.4	n/a
1991	1296	77.0	16.8	n/a
1992	1343	75.3	17.8	n/a
1993	1418	79.2	17.9	n/a
1994	1471	82.2	17.9	n/a
1995	1681	90.0	18.7	n/a
1996	1681	90.0	18.7	n/a
1997	1861	98.6	18.9	n/a
1998	1099	64.2	17.1	n/a
1999	1108	64.3	17.2	n/a
2000	1234	69.5	17.8	n/a
2001	1245	67.5	18.4	n/a
2002	1382	73.0	18.9	6.1
2003	1382	73.0	18.9	6.1
2004	1389	76.3	18.2	7.4
2005	1430	76.0	18.8	8.8
2006	1411	80.5	17.5	11.5
2007	1434	78.0	18.4	13.4
2008	1457	74.0	19.7	13.4
2009	1475	86.0	17.2	16.3
2010	1545	88.1	17.5	18.9
2011	1572	88.5	17.7	19.8
2012	1588	89.3	17.7	23.8
2013	1571	69.2	22.6	23
2014	1537	91.6	16.7	23.2
2015	1535	90.0	17.0	29.1
2016	1540	88.0	17.5	23.2
2017	1545	86.8	17.7	27
2018	1508	80.4	18.7	29.4
2019	1476	85.5	17.2	28.1
2020	1421	90.5	15.6	27.7
2021	1486	n/a	n/a	n/a
2022	1545	92.5	16.7	24.3
2023	1470	87.1	16.8	35.8
2024	1498	83.6	17.9	35.8

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 Crystal Lake Central High School

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1988	1300	66.2	19.6	n/a
1989	1277	74.0	17.2	n/a
1990	1249	71.7	17.4	n/a
1991	1296	77.0	16.8	n/a
1992	1343	75.3	17.8	n/a
1993	1418	79.2	17.9	n/a
1994	1471	82.2	17.9	n/a
1995	1681	90.0	18.7	n/a
1996	1681	90.0	18.7	n/a
1997	1861	98.6	18.9	n/a
1998	1099	64.2	17.1	n/a
1999	1108	64.3	17.2	n/a
2000	1234	69.5	17.8	n/a
2001	1245	67.5	18.4	n/a
2002	1382	73.0	18.9	6.1
2003	1382	73.0	18.9	6.1
2004	1389	76.3	18.2	7.4
2005	1430	76.0	18.8	8.8
2006	1411	80.5	17.5	11.5
2007	1434	78.0	18.4	13.4
2008	1457	74.0	19.7	13.4
2009	1475	86.0	17.2	16.3
2010	1545	88.1	17.5	18.9
2011	1572	88.5	17.7	19.8
2012	1588	89.3	17.7	23.8
2013	1571	69.2	22.6	23
2014	1537	91.6	16.7	23.2
2015	1535	90.0	17.0	29.1
2016	1540	88.0	17.5	23.2
2017	1545	86.8	17.7	27
2018	1508	80.4	18.7	29.4
2019	1476	85.5	17.2	28.1
2020	1421	90.5	15.6	27.7
2021	1486	n/a	n/a	n/a
2022	1545	92.5	16.7	24.3
2023	1470	87.1	16.8	35.8
2024	1498	83.6	17.9	35.8

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