Private School Review - Established 2003

Key Biscayne Private Schools (2026)

For the 2026 school year, there are 4 private schools serving 1,151 students in Key Biscayne, FL, 32% of all K-12 students in Key Biscayne, FL are educated in private schools versus public schools (compared to the FL state average of 14%).
100% of private schools in Key Biscayne, FL are religiously affiliated (most commonly Presbyterian and Catholic).

Quick Facts (2026)

Quick Facts (2026)

Top Ranked Key Biscayne Private Schools (2026)

Map of St. Agnes Academy
St. Agnes Academy
Gr: PK-8 | 561 students
Avg. class size: 24 students
Sports: 5 | Extracurriculars: 10
Catholic
122 Harbor Dr
Key Biscayne, FL 33149
(305) 361-3245
(1)
View Profile
Map of St. Christophers
St. Christophers
Gr: PK-6 | 230 students
Avg. class size: 15 students
Montessori School (Episcopal)
95 Harbor Dr
Key Biscayne, FL 33149
(305) 361-5080
View Profile
Map of Key Biscayne International Christian School
Key Biscayne International Christian School
Gr: PK-7 | 187 students
Presbyterian
160 Harbor Drive
Key Biscayne, FL 33149
(305) 365-6070
View Profile
Key Biscayne Presbyterian School Photo
Key Biscayne Presbyterian School
Gr: PK-1 | 173 students
Sports: 6 | Extracurriculars: 5
Presbyterian
160 Harbor Dr
Key Biscayne, FL 33149
(305) 361-2058
View Profile

Key Biscayne, FL Private School Trends (10-Year)

4
Private Schools
1,151
Students
+16.4% (+162 students) 10-yr
$14,995
Avg. Tuition
20
Avg. Class Size
-16.7% (-4 students) 10-yr
71%
Students of Color
-19.3% (-17.0 pp) 10-yr
20:1
Student-Teacher Ratio
+42.9% (+6.0) 10-yr
Download town snapshot: CSV | XML | JSON 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.
Enrollment & Diversity
Category
This Town (Key Biscayne)
This State (FL)
# Schools
4 Schools
2,770 Schools
# Students
1,151 Students
479,900 Students

Trends in the Average Number of Students Per Private School

YearKey Biscayne, FL AvgFlorida (FL)National
2025288182179
2024288175172
2023260179174
2022223185185
2021223178180
2020223166171
2019236176175
2018236173172
2017237186180
2016247181178
2015247166167
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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 of Color
71%
48%

Percentage of Students of Color Trends (2015-2025)

YearKey Biscayne, FL AvgFlorida (FL)National
202571%47%34%
202471%47%34%
202391%46%33%
202291%45%33%
202191%45%32%
202091%45%32%
201991%42%31%
201891%42%31%
201782%37%32%
201688%39%32%
201588%41%32%
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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.

0.65
0.73

Diversity Score Trends

YearKey Biscayne, FL AvgFlorida (FL)National
20250.650.730.65
20240.650.730.65
20230.520.730.65
20220.540.720.64
20210.540.720.64
20200.540.720.64
20190.550.710.63
20180.550.710.63
20170.560.690.61
20160.560.680.61
20150.560.680.61
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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.

▼ Show more data/charts: racial breakdown
# American Indian Students
n/a
1,211 Students
% American Indian Students
n/a
n/a
# Asian Students
2 Students
13,035 Students
% Asian Students
n/a
3%
# Hispanic Students
503 Students
91,012 Students
% Hispanic Students
44%
19%

Hispanic Student Percentage Trends

YearKey Biscayne, FL AvgFlorida (FL)National
202544%19%9%
202444%20%9%
202363%19%9%
202257%18%8%
202157%18%9%
202057%18%9%
201955%18%8%
201855%18%8%
201754%16%8%
201651%16%8%
201551%16%8%
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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.

# Black Students
n/a
55,353 Students
% Black Students
n/a
12%
# White Students
267 Students
182,468 Students
% White Students
23%
39%

White Student Percentage Trends

YearKey Biscayne, FL AvgFlorida (FL)National
202523%39%52%
202423%39%52%
20237%39%52%
20226%41%54%
20216%42%54%
20206%42%54%
20196%43%56%
20186%44%56%
20177%47%58%
20167%47%58%
20157%48%58%
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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.

# Hawaiian Students
n/a
1,211 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
379 Students
129,674 Students
% of Others Students
33%
27%

Other Races Student Percentage Trends

YearKey Biscayne, FL AvgFlorida (FL)National
202533%27%26%
202433%26%26%
202330%27%25%
202237%27%25%
202137%26%25%
202037%25%24%
201939%26%24%
201839%25%23%
201739%26%22%
201642%25%22%
201542%24%21%
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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.

All Ethnic Groups
Academics
# Teachers
59 Teachers
41,743 Teachers
Average Student-Teacher Ratio
20:1
12:1

Student-Teacher Ratio Trends (2015-2025)

YearKey Biscayne, FL AvgFlorida (FL)National
202520:112:111:1
202420:112:111:1
202313:112:111:1
202216:112:111:1
202116:111:111:1
202016:112:112:1
20198:112:112:1
20188:112:112:1
20179:112:112:1
201614:112:112:1
201514:112:112:1
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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.

% Average Faculty w/Advanced Degree
25%
52%

Percentage of Faculty With Advanced Degrees Trends (2017-2025)

YearKey Biscayne, FL AvgFlorida (FL)National
202525%51%55%
202425%51%54%
202225%50%54%
202125%50%54%
202025%49%54%
201925%48%53%
201825%47%53%
201725%46%53%
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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.

Average Class Size
20 students
16 students

Class Size Trends (2015-2025)

YearKey Biscayne, FL AvgFlorida (FL)National
2025201615
2024241515
2023241515
2022241515
2021241515
2020241515
2019241515
2018241515
2017241515
2016241515
2015241515
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Download Full Town Data: Full Town Dataset XML | Full Town 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 & Aid
Average Yearly Tuition Cost
$14,995
$13,840

Tuition Cost Trends (2024-2025)

YearKey Biscayne, FL AvgFlorida (FL)National
2025$14,995$14,120$15,012
2024$14,995$11,299$13,254
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Download Full Town Data: Full Town Dataset XML | Full Town 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.

Admissions & Athletics
Average Number of Extracurriculars
8 extracurriculars
8 extracurriculars
Average Number of Sports
6 sports
7 sports

Frequently Asked Questions

What are the top ranked private schools in Key Biscayne, FL?
The top ranked private schools in Key Biscayne, FL include St. Agnes Academy and St. Christophers.
How many private schools are located in Key Biscayne?
4 private schools are located in Key Biscayne.
What percentage of students in Key Biscayne go to private school?
32% of all K-12 students in Key Biscayne are educated in private schools (compared to the FL state average of 14%).
What percentage of private schools are religiously affiliated in Key Biscayne?
100% of private schools in Key Biscayne are religiously affiliated (most commonly Presbyterian and Catholic).
Which private schools in Key Biscayne are often viewed compared to one another?

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