For the 2025 school year, there are 11 public high schools serving 5,180 students in Dekalb County, IL.
The top ranked public high schools in Dekalb County, IL are Sycamore High School, Somonauk High School and Hinckley-big Rock High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Dekalb County, IL public high schools have an average math proficiency score of 18% (versus the Illinois public high school average of 26%), and reading proficiency score of 26% (versus the 29% statewide average). High schools in Dekalb County have an average ranking of 7/10, which is in the top 50% of Illinois public high schools.
Dekalb County, IL public high school have a Graduation Rate of 85%, which is less than the Illinois average of 87%.
The school with highest graduation rate is Sycamore High School, with 94% graduation rate. Read more about public school graduation rate statistics in Illinois or national school graduation rate statistics.
Minority enrollment is 39% of the student body (majority Hispanic), which is less than the Illinois public high school average of 55% (majority Hispanic).
Best Public High Schools in Dekalb County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Sycamore High School
(Math: 29% | Reading: 40%)
Rank:
Rank:
8/
Top 30%10
427 Spartan Trl
Sycamore, IL 60178
(815) 899-8160
Sycamore, IL 60178
(815) 899-8160
Grades: 9-12
| 1,190 students
Rank: #22.
Somonauk High School
(Math: 25-29% | Reading: 20-29%)
Rank:
Rank:
6/
Top 50%10
501 W Market St
Somonauk, IL 60552
(815) 498-2314
Somonauk, IL 60552
(815) 498-2314
Grades: 9-12
| 228 students
Rank: #33.
Hinckley-big Rock High School
(Math: 20-29% | Reading: 20-29%)
Rank:
Rank:
6/
Top 50%10
700 E Lincoln Ave
Hinckley, IL 60520
(815) 286-7501
Hinckley, IL 60520
(815) 286-7501
Grades: 9-12
| 203 students
Rank: #44.
Sandwich Community High School
(Math: 15-19% | Reading: 25-29%)
Rank:
Rank:
5/
Bottom 50%10
515 Lions Rd
Sandwich, IL 60548
(815) 786-2157
Sandwich, IL 60548
(815) 786-2157
Grades: 9-12
| 549 students
Rank: #55.
Indian Creek High School
(Math: 15-19% | Reading: 20-29%)
Rank:
Rank:
5/
Bottom 50%10
506 S Shabbona Rd
Shabbona, IL 60550
(815) 824-2197
Shabbona, IL 60550
(815) 824-2197
Grades: 9-12
| 261 students
Rank: #66.
Genoa-kingston High School
(Math: 15-19% | Reading: 20-24%)
Rank:
Rank:
5/
Bottom 50%10
980 Park Ave
Genoa, IL 60135
(815) 784-5111
Genoa, IL 60135
(815) 784-5111
Grades: 9-12
| 468 students
Rank: #77.
Dekalb High School
(Math: 12% | Reading: 23%)
Rank:
Rank:
4/
Bottom 50%10
501 W Dresser Rd
Dekalb, IL 60115
(815) 754-2100
Dekalb, IL 60115
(815) 754-2100
Grades: 9-12
| 2,070 students
Rank: #88.
Hiawatha Jr/sr High School
(Math: 10-14% | Reading: 10-14%)
Rank:
Rank:
3/
Bottom 50%10
410 1st St
Kirkland, IL 60146
(815) 522-3335
Kirkland, IL 60146
(815) 522-3335
Grades: 6-12
| 211 students
Rank: n/an/a
Indian Valley Area Voc Center
Vocational School
600 Lions Rd
Sandwich, IL 60548
(815) 786-9873
Sandwich, IL 60548
(815) 786-9873
Grades: 11-12
| n/a students
Rank: n/an/a
Kec Area Voc Center
Vocational School
21255 Malta Rd
Malta, IL 60150
(815) 825-2000
Malta, IL 60150
(815) 825-2000
Grades: 11-12
| n/a students
Rank: n/an/a
Kec Central Efe 170
Alternative School
21255 Malta Rd
Malta, IL 60150
(815) 825-2000
Malta, IL 60150
(815) 825-2000
Grades: 7-12
| n/a students
Dekalb County Public Schools (Closed)
School
Location
Grades
Students
900 East Garden St
Dekalb, IL 60115
(815) 754-2320
Dekalb, IL 60115
(815) 754-2320
Grades: K-5
| 281 students
650 N 1st St
Dekalb, IL 60115
(815) 754-2324
Dekalb, IL 60115
(815) 754-2324
Grades: 6-8
| 547 students
123 W 1st St
Genoa, IL 60135
(815) 784-2448
Genoa, IL 60135
(815) 784-2448
Grades: PK-1
| 239 students
Indian Valley Area Vocational Center (Closed 2013)
Vocational School
600 Lions Rd
Sandwich, IL 60548
(815) 786-9873
Sandwich, IL 60548
(815) 786-9873
Grades: 11-12
| n/a students
Kec Area Vocational Center (Closed 2013)
Vocational School
21255 Malta Rd
Malta, IL 60150
(815) 825-2000
Malta, IL 60150
(815) 825-2000
Grades: 11-12
| n/a students
Kecol High School (Closed 2013)
Vocational School
901 South 4th St
Dekalb, IL 60115
(815) 754-2400
Dekalb, IL 60115
(815) 754-2400
Grades: 9-12
| n/a students
5068 Il Route 38
Malta, IL 60150
(815) 825-2061
Malta, IL 60150
(815) 825-2061
Grades: K-5
| 282 students
220 N Maple St
Waterman, IL 60556
(815) 264-3351
Waterman, IL 60556
(815) 264-3351
Grades: K-5
| 120 students
Frequently Asked Questions
What are the top ranked public high schools in Dekalb County, IL?
The top ranked public high schools in Dekalb County, IL include Sycamore High School, Somonauk High School and Hinckley-big Rock High School.
How many public high schools are located in Dekalb County?
11 public high schools are located in Dekalb County.
What is the racial composition of students in Dekalb County?
Dekalb County public high schools minority enrollment is 39% of the student body (majority Hispanic), which is less than the Illinois public high schools average of 55% (majority Hispanic).
Which public high schools in Dekalb County are often viewed compared to one another?
Popular comparisons of public high schools in Dekalb County include: Sandwich Community High School vs. Somonauk High School, Somonauk High School vs. Sandwich Community High School, Sycamore High School vs. Dekalb High School
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