For the 2026 school year, there are 3 private schools serving 300 students in Washington County, IL (there are 7 public schools, serving 1,758 public students). 15% of all K-12 students in Washington County, IL are educated in private schools (compared to the IL state average of 12%).
The top-ranked private schools in Washington County, IL include Immanuel Lutheran School and Trinity Lutheran School.
The average acceptance rate is 95%, which is higher than the Illinois private school average acceptance rate of 84%.
100% of private schools in Washington County, IL are religiously affiliated (most commonly Lutheran Church Missouri Synod).
Top-Ranked Washington County Private Schools (2026)
School
Location
Quick Facts
Immanuel Lutheran School
(Lutheran Church Missouri Synod)
606 S Hanover St
Okawville, IL 62271
(618) 243-6142
Okawville, IL 62271
(618) 243-6142
Gr: PK-8 | 90 students Avg. class size: 8 students Sports: 7 Tuition & acceptance rate listed
155 N. Main St.
Hoyleton, IL 62803
(618) 493-7754
Hoyleton, IL 62803
(618) 493-7754
Gr: PK-8 | 86 students
Trinity-st John Lutheran School
(Lutheran Church Missouri Synod)
680 W Walnut St
Nashville, IL 62263
(618) 327-8561
Nashville, IL 62263
(618) 327-8561
Gr: PK-8 | 124 students Avg. class size: 15 students Tuition listed
Washington County Private Schools (Closed)
School
Location
Quick Facts
St. Ann Catholic School (Closed 2024)
(Catholic)
675 S. Mill St.
Nashville, IL 62263
(618) 327-8741
Nashville, IL 62263
(618) 327-8741
Gr: PK-8 | 58 students Avg. class size: 10 students Tuition & acceptance rate listed
St. Michael School (Closed 2024)
(Catholic)
52 S 3rd St
Radom, IL 62876
(618) 485-6461
Radom, IL 62876
(618) 485-6461
Gr: K-9 | 69 students
Overview
This County (Washington County)
This State (IL)
# Schools
3 Schools
Student Body:
# Students
300 Students
251,698 Students
% Average Students of Color
3%
34%
Academics and Faculty:
# Teachers
19 Teachers
18,883 Teachers
Average Student-Teacher Ratio
16:1
13:1
Average Class Size
12 students
17 students
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$2,100
$12,500
Average % on Financial Aid
80%
34%
Average Financial Aid Grant
$1,000
$3,903
Average Acceptance Rate
95%
84%
Average Endowment Size
$50 million
$49.13 million
Students by Ethnicity:
Diversity Score
0.47
0.66
# American Indian Students
n/a
605 Students
% American Indian Students
n/a
n/a
# Asian Students
1 Student
10,494 Students
% Asian Students
1%
4%
# Hispanic Students
n/a
25,127 Students
% Hispanic Students
n/a
10%
# Black Students
3 Students
21,074 Students
% Black Students
1%
9%
# White Students
196 Students
129,091 Students
% White Students
65%
51%
# Hawaiian Students
n/a
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
100 Students
65,330 Students
% of Others Students
33%
26%
All Ethnic Groups
Extracurriculars and Sports:
Average Number of Sports
7 sports
6 sports
Frequently Asked Questions
What are the top-ranked private schools in Washington County, IL?
The top-ranked private schools in Washington County, IL include Immanuel Lutheran School and Trinity Lutheran School.
How many private schools are located in Washington County?
3 private schools are located in Washington County.
What percentage of students in Washington County go to private school?
15% of all K-12 students in Washington County are educated in private schools (compared to the IL state average of 12%).
What percentage of private schools are religiously affiliated in Washington County?
100% of private schools in Washington County are religiously affiliated (most commonly Lutheran Church Missouri Synod).
Recent Articles
How Private Schools Are Preventing Student Burnout
Discover how private schools are addressing student burnout through wellness programs, balanced academics, and expanded mental health support.
How Private Schools Evaluate “Soft Skills” Like Leadership and Grit
Learn how private schools assess leadership, grit, resilience, and character, and why these soft skills are becoming increasingly important in admissions.
How Private Schools Handle Cell Phones: Why Phone-Free Campuses Are Growing
Discover how private schools manage cell phones, why phone-free campuses are growing, and how reduced social media access can benefit students.