For the 2026 school year, there is 1 private school serving 253 students in Delaware County, IA (there are 8 public schools, serving 2,001 public students). 11% of all K-12 students in Delaware County, IA are educated in private schools (compared to the IA state average of 10%).
100% of private schools in Delaware County, IA are religiously affiliated (most commonly Catholic).
Private Schools in Delaware County (2026)
School
Location
Quick Facts
St. Mary School
(Catholic)
132 W Butler St
Manchester, IA 52057
(563) 927-3689
Manchester, IA 52057
(563) 927-3689
Gr: PK-6 | 253 students
Delaware County Private Schools (Closed)
School
Location
Quick Facts
St. Joseph School (Closed 2006)
(Catholic)
218 North Earl Street
Earlville, IA 52041
(563) 923-2895
Earlville, IA 52041
(563) 923-2895
Gr: PK-6 | 54 students
Overview
This County (Delaware County)
This State (IA)
# Schools
1 School
Student Body:
# Students
253 Students
52,698 Students
Academics and Faculty:
# Teachers
15 Teachers
4,274 Teachers
Average Student-Teacher Ratio
17:1
12:1
Tuition and Acceptance Rate:
Students by Ethnicity:
Diversity Score
0.33
0.48
# American Indian Students
n/a
116 Students
% American Indian Students
n/a
n/a
# Asian Students
n/a
1,075 Students
% Asian Students
n/a
2%
# Hispanic Students
1 Student
3,392 Students
% Hispanic Students
n/a
7%
# Black Students
n/a
1,537 Students
% Black Students
n/a
3%
# White Students
202 Students
36,965 Students
% White Students
80%
70%
# Hawaiian Students
n/a
98 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
50 Students
9,624 Students
% of Others Students
20%
18%
All Ethnic Groups
Extracurriculars and Sports:
Frequently Asked Questions
How many private schools are located in Delaware County, IA?
1 private schools are located in Delaware County, IA.
What percentage of students in Delaware County go to private school?
11% of all K-12 students in Delaware County are educated in private schools (compared to the IA state average of 10%).
What percentage of private schools are religiously affiliated in Delaware County?
100% of private schools in Delaware County are religiously affiliated (most commonly Catholic).
Recent Articles
How to Ask About Staff Screening Without Apologizing
Parents should feel comfortable asking how private schools screen employees. Learn which questions matter, what answers to expect, and why transparency about hiring and student safety is a hallmark of a well-managed school.
What Facility Safety Tells You About School Oversight
A school's facilities reveal far more than appearance. Learn how building maintenance, emergency preparedness, and campus safety practices can help parents evaluate school leadership, oversight, and long-term commitment to student well-being.
Is the School Legally a School? A Parent Verification Checklist
Before enrolling your child in a private school, learn how to verify that it is legally operating, properly accredited, and authorized to issue recognized diplomas with this practical parent checklist for making a confident school choice.