Type
-
School
Delbarton School
Siviq Rank#134Morristown, NJ
Enrollment
645
Student-Teacher Ratio
8:1
Admit Rate
-
Reach
Limited Evidence
Narrative
Profile Notes
Summary
Extracted from the 1-page 2025-2026 Delbarton School profile image. The profile reports 645 students, 87 total faculty members, AP courses in all subjects, a non-ranking policy, weighted GPA treatment for advanced/AP courses, 2022-2025 graduate college destinations where 3 or more enrolled, and named college counseling contacts. No AP course count, average SAT/ACT, admissions counts, financial aid figures, or school codes were supported by the provided page.
College Counseling
College counselors listed: Michael Rosenhaus ’80, Director of College Counseling; Sean Flanagan, Associate Director of College Counseling; Nicholas Linfante; Christine Connelly.
Advanced Coursework
AP courses in all subjects. 100% have taken one or are taking at least one AP course; 75% have taken or are taking two or more. Advanced courses are weighted one-half additional value and Advanced Placement courses are weighted one whole additional value in determining GPA.
Matriculation Notes
561 graduated from 2022 through 2025 of whom 3 or more enrolled at the listed colleges.
Siviq Layer
Siviq Scores
Siviq Scores
Precomputed percentiles relative to similar schools. These scores are descriptive rather than judgmental.
Academic Program
100th percentile
Higher reported academic program than 100% of similar schools.
Combines advanced-course offerings, testing, and reported honors or IB signals.
Average Class Size
60th percentile
Lower reported average class size than 60% of similar schools.
Smaller reported average classes score higher within each peer cohort.
Outcomes
21st percentile
Higher reported outcomes than 21% of similar schools.
Based on reported college destinations in the current school profile.
Reach & Access
0th percentile
Higher reported reach & access than 0% of similar schools.
Combines geographic reach and reported access signals from the current school data.
Student Experience
20th percentile
Lower reported student experience than 20% of similar schools.
Lower student-teacher ratios score higher within each peer cohort.
Standardized Data
Profile
Profile
Overview
- Grades Served
- 7-12
Profile
Academics
- Honors Program
- Yes
Profile
Student Body
- States Represented
- 3
- Students of Color
- 29%
- Receiving Financial Aid
- 21%
Profile
Policies
- Class Rank Policy
- Delbarton does not rank students.
- Weighted Grades
- Yes
- Weighted Grades Policy
- Advanced courses are weighted one-half additional value and Advanced Placement courses are weighted one whole additional value in determining GPA.
Location Context
Nearest
Institutional Details
People & Credentials
Institutional
Contacts
Director of College Counseling
Mr. Michael Rosenhaus ’80
Associate Director of College Counseling
Mr. Sean Flanagan
College Counseling
Mr. Nicholas Linfante
College Counseling
Mrs. Christine Connelly
Institutional
Accreditations
listed
New Jersey Department of Education
The visible line includes “NJ Dept. of Education” in a sequence with accreditation/membership information; preceding text is partially cut off in the image.
member
NAIS
member
NJAIS
member
NCEA
External References
Links
College Outcomes
Top Colleges
Search & Answers
Delbarton School Frequently Asked Questions
What is the student-teacher ratio at Delbarton School?
The current school profile does not publish a normalized student-teacher ratio for Delbarton School.
How many students are enrolled at Delbarton School?
The current school profile reports about 645 students enrolled at Delbarton School.
Is Delbarton School a day school or a boarding school?
Delbarton School is a private school.
Which colleges show up most often for Delbarton School?
The current school profile highlights Amherst as one of the top reported college destinations for Delbarton School.
Does Delbarton rank students?
No. The supplied profile states that Delbarton does not rank students.
Who handles college counseling at Delbarton?
The college counseling team listed includes Michael Rosenhaus ’80, Director of College Counseling; Sean Flanagan, Associate Director; Nicholas Linfante; and Christine Connelly.
What SAT and ACT ranges does Delbarton report?
For the Class of 2026 through June of junior year, Delbarton reports middle 50% ranges of 600–720 for SAT ERW, 600–720 for SAT Math, and 24–32 for ACT Composite, based on 143 students.
Where have recent Delbarton graduates enrolled for college?
For 561 graduates from 2022 through 2025, Delbarton lists colleges where 3 or more enrolled, including Brown, Columbia, Cornell, Dartmouth, Duke, Georgetown, Harvard, Princeton, Penn, Vanderbilt, Williams, and Yale.
By Geography
Nearby Schools
By Similarity
Similar Schools
Provenance
Sources
| Source | Type | Checked | Metrics |
|---|---|---|---|
| 2025-2026 School Profile (PDF) Used for normalized profile metrics, school facts, FAQ answers, and school SEO metadata. | School Profile PDF | Apr 01, 2026 | Academic Rigor Category • Access Category • Accreditations • Advanced Course Notes • Average Class Size • Boarding Model • More normalized profile fields |
| About Us - Delbarton School | Excellence, Leadership, and Faith www.delbarton.org/about-us | Official Website Page | May 12, 2026 | Average Class Size • Faculty Count • Grades Served |
| Home - Delbarton School | Excellence, Leadership, and Faith www.delbarton.org | Official Website Page | Apr 05, 2026 | Enrollment • Faculty Count • Grades Served • Honors Program • Receiving Financial Aid • States Represented • Student-Teacher Ratio • Students of Color |
| Welcome - Delbarton School | Excellence, Leadership, and Faith www.delbarton.org/about-us/we-are-called-to-excellence | Official Website Page | Apr 05, 2026 | Grades Served |
Sources & Data QualityMirrored artifacts, website inventory, and normalization review notes for this school profile.
Source Links
Known Website Addresses
| Role | URL | Method |
|---|---|---|
| official_website | www.delbarton.org/about/at-a-glance | supplemental_backfill |
| official_website | www.delbarton.org/about/facts | supplemental_backfill |
| official_website | www.delbarton.org/about/fast-facts | supplemental_backfill |
| official_website | www.delbarton.org/about/quick-facts | supplemental_backfill |
| Academics - Delbarton School | Excellence, Leadership, and Faith | www.delbarton.org/academics | supplemental_backfill |
| official_website | www.delbarton.org/admission | supplemental_backfill |
| Admissions - Delbarton School | Excellence, Leadership, and Faith | www.delbarton.org/admissions | supplemental_backfill |
| official_website | www.delbarton.org/student-life | supplemental_backfill |
| official_website | www.delbarton.org/tuition-and-financial-aid | supplemental_backfill |
| College Counseling - Delbarton School | www.delbarton.org/academics/college-counseling | site_scan |
| 2025-2026 school profile PDF | resources.finalsite.net/images/v1755185361/delbarton/t3nbpguflioi9clqeruz/2026Profile.pdf | page_scan |
| About Us - Delbarton School | Excellence, Leadership, and Faith | www.delbarton.org/about-us | supplemental_backfill |
| Contacts and Directions - Delbarton School | Excellence, Leadership, and Faith | www.delbarton.org/about-us/explore-delbarton | supplemental_backfill |
| Mission and Beliefs - Delbarton School | Excellence, Leadership, and Faith | www.delbarton.org/about-us/mission-and-beliefs | supplemental_backfill |
| Grounds and Facilities - Delbarton School | Excellence, Leadership, and Faith | www.delbarton.org/about-us/our-grounds-and-facilities | supplemental_backfill |
| Inquire - Delbarton School | Excellence, Leadership, and Faith | www.delbarton.org/admissions/inquire | supplemental_backfill |
| Home - Delbarton School | Excellence, Leadership, and Faith | www.delbarton.org | search |
| Welcome - Delbarton School | Excellence, Leadership, and Faith | www.delbarton.org/about-us/we-are-called-to-excellence | supplemental_backfill |
| College Counseling - Delbarton School | www.delbarton.org/academics/college-counseling#fsPageContent | supplemental_backfill |
All Canonical Metrics
| Metric | Value | Evidence |
|---|---|---|
| Grades Served | 7-12 | grades 7-12 |
| Lowest Grade | - | - |
| Highest Grade | - | - |
| Postgraduate Offered | - | - |
| Boarding Status | - | - |
| Boarding Status Code | - | - |
| School Type | - | - |
| School Type Code | - | - |
| Enrollment | 645 | 645 students; Faculty: 2 Benedictine monks and 85 lay teachers. |
| Residential Enrollment | - | - |
| Day Enrollment | - | - |
| Student-Teacher Ratio | 8 | 8:1 student-to-faculty ratio |
| Founded Year | - | - |
| School Leadership | - | - |
| Key Contacts | - | Mr. Michael Rosenhaus ’80, Director of College Counseling (ext. 3012) [email protected] |
| Accreditations | - | Association, NJ Dept. of Education; member NAIS, NJAIS, NCEA; recipient of CASE Exemplary School Award. |
| School Codes | - | - |
| AP Courses | - | - |
| Average Class Size | 14 | At a Glance ... 14 students per class, on average |
| IB Program | - | - |
| Honors Program | Yes | Honors program or honors courses mentioned on the official school site. |
| Advanced Course Notes | AP courses in all subjects. 100% have taken one or are taking at least one AP course; 75% have taken or are taking two or more. Advanced courses are weighted one-half additional value and Advanced Placement courses are weighted one whole additional value in determining GPA. | AP courses in all subjects. 100% have taken one or are taking at least one AP course; 75% have taken or are taking two or more. ... Advanced courses are weighted one-half additional value and Advanced Placement courses are weighted one whole additional value in determining GPA. |
| Faculty Count | 74 | 74 faculty members |
| College Counseling Summary | College counselors listed: Michael Rosenhaus ’80, Director of College Counseling; Sean Flanagan, Associate Director of College Counseling; Nicholas Linfante; Christine Connelly. | COLLEGE COUNSELORS Mr. Michael Rosenhaus ’80, Director of College Counseling ... Mr. Sean Flanagan, Associate Director of College Counseling ... Mr. Nicholas Linfante ... Mrs. Christine Connelly |
| Testing Policy | - | - |
| Testing Policy Code | - | - |
| Average SAT | - | - |
| Average ACT | - | - |
| Matriculation Summary | 561 graduated from 2022 through 2025 of whom 3 or more enrolled at the listed colleges. | GRADUATES’ COLLEGES 561 graduated from 2022 through 2025 of whom 3 or more enrolled at: |
| Top Colleges | - | Amherst 3 or more enrolled; Boston College 3 or more enrolled; Bowdoin 3 or more enrolled; Brown 3 or more enrolled; Bucknell 3 or more enrolled; Colgate 3 or more enrolled; Columbia 3 or more enrolled; Cornell 3 or more enrolled; Dartmouth 3 or more enrolled; Dickinson 3 or more enrolled; Duke 3 or more enrolled; Fairfield 3 or more enrolled; Fordham 3 or more enrolled; Georgetown 3 or more enrolled; George Washington 3 or more enrolled; Hamilton 3 or more enrolled; Harvard 3 or more enrolled; Hobart 3 or more enrolled; Holy Cross 3 or more enrolled; Hopkins 3 or more enrolled; Lafayette 3 or more enrolled; Lehigh 3 or more enrolled; Loyola Maryland 3 or more enrolled; Michigan 3 or more enrolled; Middlebury 3 or more enrolled; New York University 3 or more enrolled; Northeastern 3 or more enrolled; Northwestern 3 or more enrolled; Notre Dame 3 or more enrolled; Pennsylvania 3 or more enrolled; Princeton 3 or more enrolled; Providence 3 or more enrolled; Richmond 3 or more enrolled; Rutgers 3 or more enrolled; Southern California 3 or more enrolled; Stevens 3 or more enrolled; Trinity 3 or more enrolled; Union 3 or more enrolled; University of Miami 3 or more enrolled; Vanderbilt 3 or more enrolled; Villanova 3 or more enrolled; Virginia 3 or more enrolled; Wake Forest 3 or more enrolled; Washington & Lee 3 or more enrolled; Washington University 3 or more enrolled; William & Mary 3 or more enrolled; Williams 3 or more enrolled; Yale 3 or more enrolled |
| States Represented | 3 | 638 Young men from 120 towns and 12 counties in New Jersey, New York and Pennsylvania |
| Countries Represented | - | - |
| Students of Color | 29 | 29% of students identify as people of color |
| International Students | - | - |
| Receiving Financial Aid | 21 | 21% of 9th-12th grade students receive financial assistance |
| Tuition-Free Share | - | - |
| Applicants | - | - |
| Admitted | - | - |
| Matriculated | - | - |
| Admit Rate | - | - |
| Yield Rate | - | - |
| Class Rank Policy | Delbarton does not rank students. | Delbarton does not rank students. |
| Class Rank Policy Code | - | Delbarton does not rank students. |
| Weighted Grades | Yes | Advanced courses are weighted one-half additional value and Advanced Placement courses are weighted one whole additional value in determining GPA. |
| Weighted Grades Policy | Advanced courses are weighted one-half additional value and Advanced Placement courses are weighted one whole additional value in determining GPA. | Advanced courses are weighted one-half additional value and Advanced Placement courses are weighted one whole additional value in determining GPA. |
| Disciplinary Reporting | - | - |
| Boarding Model | unknown | unknown |
| Selectivity Category | selective | selective |
| Academic Rigor Category | high | high |
| Testing Policy Category | not_reported | not_reported |
| College Counseling Category | established | established |
| Student Body Reach Category | limited_evidence | limited_evidence |
| Access Category | limited_evidence | limited_evidence |
| Outcome Category | strong_outcomes | strong_outcomes |
| Signals | - | Boarding/day status is not reported in the supplied evidence; enrollment is reported as 645 students but without residential/day breakdown.; Admissions pressure is not reported: no applicant, admit, matriculated, admit-rate, or yield figures are supplied.; Score context is reported for Class of 2026 through June of junior year: SAT middle 50% ERW 600-720, Math 600-720; ACT middle 50% composite 24-32, covering 143 students.; Academic rigor signals include AP courses in all subjects, 100% of students having taken or taking at least one AP course, and 75% having taken or taking two or more AP courses.; Advanced courses receive one-half additional GPA value and AP courses receive one additional GPA value.; Structures & Algorithms are described as among the most demanding senior courses and as college-level courses.; Faculty evidence reports 73 full-time members, with 71 holding advanced degrees.; College counseling office is explicitly listed with a Director of College Counseling, Associate Director of College Counseling, and two additional college counseling contacts.; Testing policy is not reported in the supplied college counseling evidence.; Student-body geographic reach is not reported: no states represented, countries represented, or international-student percentage is supplied.; Financial-aid participation is not reported: no receiving-aid percentage or tuition-free share is supplied.; College outcomes are reported for 561 graduates from 2022 through 2025, listing colleges where three or more enrolled, including Amherst, Brown, Columbia, Cornell, Dartmouth, Duke, Georgetown, Harvard, Northwestern, Princeton, University of Pennsylvania, Vanderbilt, Williams, and Yale. |