Carondelet is an inclusive Catholic, college-prep high school located in Concord, California, offering young women a transformative educational experience. Her School - At Carondelet, her voice is heard, her passions are nurtured, and she's supported by a community that believes in her. Rooted in the mission of the Sisters of St. Joseph, we foster an inclusive environment that embraces all students and values diversity, empathy, service, and social justice.
Her Experience - From athletics and the arts to immersion trips and spiritual retreats-our diverse sisterhood provides a caring space where she can explore new interests and build meaningful, lifelong connections.
An All-Girls Advantage - Carondelet empowers students to lead without limitations.
All-girls classes for the first two years build confidence and voice; through our partnership with De La Salle, juniors and seniors have the opportunity to grow in a co-ed setting.
College Prep Curriculum - Our personalized, college preparatory curriculum fosters self-advocacy, collaboration, and critical thinking-equipping each young woman to become an empowered, purpose-driven leader.
Quick Facts (2025-26)
- Top Ranked CA School
- Grades: 9-12
- Enrollment: 800 students
- Yearly Tuition: $25,300
- Average class size: 22 students
- Application Deadline: Dec. 5
- Source: Verified school update
Top Rankings
Carondelet High School ranks among the top 20% of private schools in California for:
Category
Attribute
Student Body
AP Courses
Sports offered
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades 9-12
ADD/ADHD Support
Yes
Learning Difference Programs
Yes
Year Founded
1965
Colors
White, Red, Gold
Summer School Offered
Yes
Summer Program Details
School Calendar
Last Day of School
Thu. May 28, 2026
Campus Size
15 acres
Student Body
Total Students
800 students
Student Body Type
% Students of Color
64%
State avg.: 51%
Students by Grade
Academics and Faculty
Total Classroom Teachers
54 teachers
Student-Teacher Ratio
15:1
National avg.: 13:1
% Faculty w/Advanced Degree
29%
Average Class Size
22 students
Number of AP Courses
26 courses
List of Courses Offered
Advanced Courses
AP BiologyAP Calculus AB
AP English Lit & CompositionAP English Literature
AP Environmental ScienceAP Govt & Politics
AP Physics-BAP Psychology
AP SpanishAP Studio Art: Drawing
AP Studio Art: 2-D DesignAP Studio Art: 3-D Design
AP US HistoryHonors Alg 1
Honors Alg 2 w/TrigHonors Bio
Honors ChemHonors Concert Choir
Honors English 2Honors French 4
Honors GeometryHonors Physics
Honors Spanish 3
Average SAT score
1204
(Out of 1600)
Average ACT score
25
(Out of 36)
Matriculation DataMatric. Data
Classroom Dress Code
Casual
Tuition and Acceptance Rate
Admission Deadline
Dec. 5
Yearly Tuition Cost
$25,300
Tuition Notes
Carondelet tuition includes books, retreats, and registration fees.
% on Financial Aid
51%
College Acceptance Rate
99%
Admissions Director
Lesley Schooler
Admissions Associate
Sonia Wilson
Application URL
Sports
Total Sports Offered
17 sports
School Notes
- School Motto: More than high school. Her school.
- School Mascot: Cougars
- Mission Statement: Carondelet High Schoolinspires excellence by preparing young women to live with heart, faith and courage in the Catholic tradition and spirit ofthe Sisters of St. Joseph.
- Vision Statement: A Carondeletgraduate is empowered by her Catholic, college-preparatory education and is known as a woman who responds to the needs of the times and makes a positive difference.
- Sample of notable school alumni/alumnae:
- Natalie Coughlin Hall '00 - Natalie Coughlin Hall '00 is arguably the most decorated athlete to graduate from Carondelet High School. As a 12-time Olympic medalist, Natalie is tied for the most Olympic medals won by a female swimmer in Olympics history. A three-time Olympic gold medalist, Natalie accumulated 60 medals in her 13-year international swimming career.
- Jayne Appel Marinelli '06 - Jayne Appel Marinelli '06 is an American former basketball center who played for the San Antonio Stars of the Women's National Basketball Association (WNBA) in 2016. She played collegiate basketball at Stanford University.
- Tiffany Roberts Sahaydak '95 - Tiffany Roberts Sahaydak '95 is an American soccer coach, former defender, and Olympic gold medalist. She was also a member of the 1999 U.S. national team that won the 1999 FIFA Women's World Cup. She became the 16th player in U.S. history to play over 100 matches for her country and was a founding member of the WUSA, the first women's professional soccer league in the United States.
- Nancy O’Malley ’71 - Nancy O’Malley ’71 served as the Alameda County District Attorney from September 2009 to her retirement in January 2023. The first woman to serve, she is a nationally recognized expert in issues involving violence against women and persons with disabilities, child abuse, and human trafficking.
Source: Verified school update
Frequently Asked Questions
How much does Carondelet High School cost?
Carondelet High School's tuition is approximately $25,300 for private students.
Who are famous alumni from Carondelet High School?
Carondelet High School famous alumni include: Natalie Coughlin Hall '00, Jayne Appel Marinelli '06, Tiffany Roberts Sahaydak '95 and Nancy O’Malley ’71.
Does Carondelet High School offer a summer program?
Yes, Carondelet High School offers a summer program. Visit their summer school page for more information.
What sports does Carondelet High School offer?
Carondelet High School offers 17 interscholastic sports: Badminton, Basketball, Cheering, Cross Country, Dance, Diving, Flag Football, Golf, Lacrosse, Rugby, Soccer, Softball, Swimming, Tennis, Track and Field, Volleyball and Water Polo. Carondelet High School is ranked as one of the top 20% of private schools in California for most sports offered.
What is Carondelet High School's ranking?
Carondelet High School ranks among the top 20% of private schools in California for: Largest student body, Most AP courses offered and Most sports offered.
When is the application deadline for Carondelet High School?
The application deadline for Carondelet High School is Dec. 5.
Related Schools
Show me:
People that viewed Carondelet High School also viewed these schools: Berean Christian High School, Contra Costa Christian School, Bentley School, The Athenian School and St. Mary's College High School.
The nearest high school to Carondelet High School is De La Salle High School (0.0 miles away)
The nearest elementary school is St. Francis Of Assisi (0.6 miles away)
The nearest preschool is Kla Schools Of Walnut Creek (0.5 miles away)
Show me:
Show me:
School
Location
Miles
Quick Facts
245 El Divisadero Ave
Walnut Creek, CA 94598
(925) 945-6464
Walnut Creek, CA 94598
(925) 945-6464
1.3 miles
Gr: 9-12 | 417 students Avg. class size: 14 students Sports: 13 | Extracurrculars: 9 Tuition & acceptance rate listed
2721 Larkey Lane
Walnut Creek, CA 94597
(925) 934-4964
Walnut Creek, CA 94597
(925) 934-4964
2.6 miles
Gr: PK-12 | 412 students Avg. class size: 20 students Sports: 8 Tuition & acceptance rate listed
1000 Upper Happy Valley Rd
Lafayette, CA 94549
(925) 283-2101
Lafayette, CA 94549
(925) 283-2101
7.1 miles
Gr: K-12 | 660 students Avg. class size: 14 students Sports: 12 | Extracurrculars: 6 Tuition listed
2100 Mt Diablo Scenic Blvd
Danville, CA 94506
(925) 362-7223
Danville, CA 94506
(925) 362-7223
8.2 miles
Gr: 6-12 | 539 students Avg. class size: 15 students Sports: 12 | Extracurrculars: 23 Tuition & acceptance rate listed
1294 Albina Ave
Albany, CA 94706
(510) 526-9242
Albany, CA 94706
(510) 526-9242
14.2 miles
Gr: 9-12 | 627 students Avg. class size: 15 students Tuition & acceptance rate listed
School Reviews
Endorse Carondelet High School. Endorsements should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
- Academic or athletic awards
Recent Articles
When a Student Is Expelled for Marijuana: What Parents Should Know
Expert guidance for parents navigating a child’s expulsion for marijuana in 2025—policy, strategy, rights, and recovery steps.
Private School Alumni in Community College: Stories & Lessons
Insights from private school alumni who attend community college—lessons, challenges, and strategies for success.
Community College Cost vs Private College Cost: What Families Should Compare
Explore community college vs. private college costs in 2025, what families should compare — tuition, aid, net price, value, and ROI.
