Hillcrest Drive KinderCare Photo - Sensory Fun

Best Dekalb County Private Schools (2026)

For the 2026 school year, there are 9 private schools serving 724 students in Dekalb County, IL (there are 42 public schools, serving 16,209 public students). 4% of all K-12 students in Dekalb County, IL are educated in private schools (compared to the IL state average of 12%).
The top-ranked private school in Dekalb County, IL is St. Mary School.
56% of private schools in Dekalb County, IL are religiously affiliated (most commonly Baptist and Catholic).

Top-Ranked Dekalb County Private Schools (2026)

School
Location
Quick Facts
St. Mary School
(Catholic)
(1)
210 Gurler Rd
Dekalb, IL 60115
(815) 756-7905
Gr: NS-8 | 253 students Avg. class size: 22 students Sports: 4 | Extracurrculars: 4 Tuition listed
Aurora Christian Schools Sycamore Campus
(Christian)
355 N Cross St
Sycamore, IL 60178
(815) 895-8522
Gr: PK-5 | 127 students Avg. class size: 15 students Sports: 3 Tuition listed
First Christian School
(Baptist)
316 N Sycamore Street
Genoa, IL 60135
(815) 784-2616
Gr: K-8 | 9 students
For Kids Only Inc. #2
705 S Main Street
Sandwich, IL 60548
(815) 786-8914
Gr: NS-PK | 40 students
Hillcrest Drive KinderCare
Hillcrest Drive KinderCare Photo - Sensory Fun
Daycare / Preschool
207 E Hillcrest Dr.
Dekalb, IL 60115
(815) 758-1541
Gr: NS-PK
Montessori Childrens House Of Sycamore And Dekalb
Montessori School
26555 Brickville Rd
Sycamore, IL 60178
(815) 895-0303
Gr: K | 4 students
Northwester Center For Autism
Special Education School
(1)
315 N 6th St
Dekalb, IL 60115
(815) 787-4144
Gr: PK-12 | 85 students
St. Mary Catholic School
(Catholic)
222 Waterman St
Sycamore, IL 60178
(815) 895-5215
Gr: PK-8 | 104 students Sports: 4 | Extracurrculars: 2 Tuition listed
Somonauk Christian School
(Baptist)
(1)
315 E North St
Somonauk, IL 60552
(815) 498-2313
Gr: PK-12 | 78 students Avg. class size: 10 students Sports: 3 Tuition listed

Overview

This County (Dekalb County)
This State (IL)
# Schools
9 Schools

Student Body:

# Students
724 Students
251,484 Students
% Average Students of Color
15%
34%

Academics and Faculty:

# Teachers
86 Teachers
18,870 Teachers
Average Student-Teacher Ratio
8:1
13:1
Average Class Size
16 students
17 students

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$5,946
$12,508
Average % on Financial Aid
2%
34%

Students by Ethnicity:

0.49
0.66
# American Indian Students
n/a
605 Students
% American Indian Students
n/a
n/a
# Asian Students
5 Students
10,490 Students
% Asian Students
1%
4%
# Hispanic Students
57 Students
25,056 Students
% Hispanic Students
7%
10%
# Black Students
24 Students
21,056 Students
% Black Students
3%
9%
# White Students
529 Students
129,065 Students
% White Students
69%
51%
# Hawaiian Students
2 Students
338 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
152 Students
65,238 Students
% of Others Students
20%
26%
All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
3 extracurriculars
9 extracurriculars
Average Number of Sports
4 sports
6 sports

Frequently Asked Questions

What are the top-ranked private schools in Dekalb County, IL?
The top-ranked private schools in Dekalb County, IL is St. Mary School.
How many private schools are located in Dekalb County?
9 private schools are located in Dekalb County.
How diverse are private schools in Dekalb County?
Dekalb County private schools are approximately 15% minority students, which is lower than the Illinois private school average of 34%.
What percentage of students in Dekalb County go to private school?
4% of all K-12 students in Dekalb County are educated in private schools (compared to the IL state average of 12%).
What percentage of private schools are religiously affiliated in Dekalb County?
56% of private schools in Dekalb County are religiously affiliated (most commonly Baptist and Catholic).
Which private schools in Dekalb County are often viewed compared to one another?

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