Private School Review - Established 2003

Best Delaware County Private Schools (2026)

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 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).

Quick Facts (2026)

Quick Facts (2026)

Private Schools in Delaware County (2026)

Map of St. Mary School
St. Mary School
Gr: PK-6 | 253 students
Catholic
132 W Butler St
Manchester, IA 52057
(563) 927-3689
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[+] Show Closed Private Schools in Delaware County, Iowa

Delaware County Private Schools (Closed)

Map of St. Joseph School
St. Joseph School
Gr: PK-6 | 54 students
Catholic
218 North Earl Street
Earlville, IA 52041
(563) 923-2895
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Overview

Category
This State (IA)
US
# Schools
1 School

Trends in Total Number of Private Schools

YearDelaware County Total Schools
20251
20241
20231
20221
20211
20202
20191
20181
20171
20161
20151
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Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Students
253 Students
52,730 Students

Trends in the Average Number of Students Per Private School

YearDelaware County AverageIowa (IA) AverageNational Average
2025253217179
2024253212172
2023255192174
2022213203185
2021213201180
2020129196171
2019178199175
2018178197172
2017178195180
2016178194178
2015178188167
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Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Academics and Faculty:

# Teachers
15 Teachers
4,273 Teachers
Average Student-Teacher Ratio
17:1
12:1

Student-Teacher Ratio Trends (2015-2025)

YearDelaware County AverageIowa (IA) AverageNational Average
202517:112:111:1
202417:112:111:1
202318:113:111:1
202216:113:111:1
202116:113:111:1
202014:113:112:1
201913:114:112:1
201813:114:112:1
201713:113:112:1
201613:113:112:1
201513:113:112:1
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Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Tuition and Acceptance Rate:

Students by Ethnicity:

0.33
0.48

Diversity Score Trends

YearDelaware County AverageIowa (IA) AverageNational Average
20250.330.470.65
20240.330.470.65
20230.360.500.65
20220.410.470.64
20210.410.470.64
20200.410.470.64
20190.200.460.63
20180.200.450.63
20170.200.390.61
20160.200.390.61
20150.200.390.61
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Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# 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%

White Student Percentage Trends

YearDelaware County AverageIowa (IA) AverageNational Average
202580%70%52%
202480%71%52%
202378%68%52%
202272%71%54%
202172%70%54%
202072%71%54%
201989%72%56%
201889%72%56%
201789%77%58%
201689%76%58%
201589%76%58%
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Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# 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
9,674 Students
% of Others Students
20%
18%

Other Races Student Percentage Trends

YearDelaware County AverageIowa (IA) AverageNational Average
202520%18%26%
202420%17%26%
202322%20%25%
202228%18%25%
202128%18%25%
202025%18%24%
201911%18%24%
201811%18%23%
201711%15%22%
201611%16%22%
201511%16%21%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full County Data: Full County Dataset XML | Full County Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

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).

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