Type
Boarding
School
Groton School
Siviq Rank#113Groton, MA • Boarding
Boarding10 AP Courses
Enrollment
385
Student-Teacher Ratio
4:1
Admit Rate
-
Reach
Limited Evidence
Narrative
Profile Notes
Summary
The attached PDF is Groton School’s “Academic Policies and Course Catalog 2026–27,” not a 2025–2026 college/high-school profile. It supports academic-program, course-load, grading, AP-course, and general-contact facts, but does not report enrollment, admissions, college outcomes, standardized-test averages, financial aid, accreditation, CEEB/school codes, or named school leadership/counseling contacts.
Advanced Coursework
Advanced Placement courses are available in several departments; some non-AP courses are taught at a level that prepares students for AP examinations; independent study/tutorial options exist for Sixth Formers.
Siviq Layer
Siviq Scores
Siviq Scores
Precomputed percentiles relative to similar schools. These scores are descriptive rather than judgmental.
Academic Program
59th percentile
Higher reported academic program than 59% of similar schools.
Combines advanced-course offerings, testing, and reported honors or IB signals.
Average Class Size
0th percentile
Lower reported average class size than 0% of similar schools.
Smaller reported average classes score higher within each peer cohort.
Institutional Resources
100th percentile
Higher reported institutional resources than 100% of similar schools.
Uses linked nonprofit financial capacity when a reviewed EIN match is available.
Outcomes
0th percentile
Higher reported outcomes than 0% of similar schools.
Based on the reported outcomes evidence available for this school.
Reach & Access
29th percentile
Higher reported reach & access than 29% of similar schools.
Combines geographic reach and reported access signals from the current school data.
Student Experience
100th percentile
Lower reported student experience than 100% of similar schools.
Lower student-teacher ratios score higher within each peer cohort.
Standardized Data
Profile
Profile
Overview
- Grades Served
- Second Form through Sixth Form
Profile
Academics
- AP Courses
- 10
- Honors Program
- Yes
Profile
Student Body
- States Represented
- 30
- Countries Represented
- 24
- Students of Color
- 53%
- International Students
- 14%
- Receiving Financial Aid
- 44%
Linked Nonprofit Data
Nonprofit Financials
Net Assets
$640,083,198
Tax year 2024
Net Income
$8,650,474
Latest revenue minus expenses from the school's nonprofit filing.
Total Expenses
$58,297,149
Tax year 2024
Expenses Per Student
$151,421
Calculated from total expenses divided by the current school-profile enrollment.
Location Context
Nearest
Institutional Details
People & Credentials
Institutional
Contacts
General school contact
School Contact
Groton School, P.O. Box 991, Groton, Massachusetts 01450-0991; Fax: 978-448-3100; website: www.groton.org
External References
Links
Search & Answers
Groton School Frequently Asked Questions
What is the student-teacher ratio at Groton School?
The current school profile does not publish a normalized student-teacher ratio for Groton School.
What grades does Groton School offer?
Groton School currently reports serving grades Second Form through Sixth Form.
Where is Groton School located?
Groton School is located in Groton, MA.
Is Groton School a day school or a boarding school?
Groton School is a private school.
Does Groton School offer advanced placement (AP) courses?
Yes. The current school profile reports 10 AP courses at Groton School.
What is a typical course load at Groton?
Groton’s catalog says all students take five full-credit courses. Second and Third Form students also take art, and Upper School students may add art; taking a sixth full-credit course requires a petition to the Studies Committee.
Can Sixth Formers do independent or specialized study?
Yes. Sixth Formers may pursue tutorials for advanced study in areas not currently offered in the curriculum, subject to Studies Committee approval. In spring term, they may also apply for an Intensive Program built around one regular course plus a deep project equivalent to four regular courses.
How much homework should students expect?
Groton’s guidelines list expected prep time per class meeting: about 30 minutes for Second and Third Form courses, 40 minutes for Fourth Form, 50 minutes for Fifth Form, and 60 minutes for Sixth Form.
What does Groton require for a diploma?
The catalog lists requirements including English through fall of Sixth Form, math through Precalculus or Fifth Form, two years of lab science, Modern Global History and U.S. History, an Upper School religion course, art credits, and at least three years of language study.
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 | AP Courses • Academic Rigor Category • Access Category • Advanced Course Notes • Average Class Size • Boarding Model • More normalized profile fields |
| 2025-2026 school profile PDF resources.finalsite.net/images/v1758638251/grotonorg/bwmel7egbg6eodzynl4z/2025-26coursecatalog03JUN25.pdf | Official Linked File | May 12, 2026 | Grades Served |
| Inclusion, Affordability & Belonging - Groton School www.groton.org/about/inclusion | Official Website Page | May 12, 2026 | Founded Year |
| College Counseling - Groton School www.groton.org/academics/college-counseling | Official Profile Page | Apr 05, 2026 | AP Courses |
| Fast Facts - Groton School www.groton.org/about/fast-facts | Official Website Page | Apr 05, 2026 | Countries Represented • Faculty Count • International Students • States Represented |
| Sustainability - Groton School www.groton.org/about/sustainability | Official Website Page | Apr 05, 2026 | Founded Year |
| Home - Groton School www.groton.org | Official Website Page | Apr 05, 2026 | Average Class Size • Enrollment • Founded Year • Receiving Financial Aid • States Represented • Student-Teacher Ratio • Students of Color |
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.groton.org/about/at-a-glance | supplemental_backfill |
| Fast Facts - Groton School | www.groton.org/about/fast-facts | supplemental_backfill |
| official_website | www.groton.org/about/quick-facts | supplemental_backfill |
| Academics - Groton School | www.groton.org/academics | supplemental_backfill |
| Admission - Groton School | www.groton.org/admission | supplemental_backfill |
| official_website | www.groton.org/admissions | supplemental_backfill |
| Student Life - Groton School | www.groton.org/student-life | supplemental_backfill |
| official_website | www.groton.org/tuition-and-financial-aid | supplemental_backfill |
| College Counseling - Groton School | www.groton.org/academics/college-counseling | override |
| 2025-2026 school profile PDF | resources.finalsite.net/images/v1758638251/grotonorg/bwmel7egbg6eodzynl4z/2025-26coursecatalog03JUN25.pdf | web_search |
| About - Groton School | www.groton.org/about | supplemental_backfill |
| Inclusion, Affordability & Belonging - Groton School | www.groton.org/about/inclusion | supplemental_backfill |
| Home - Groton School | www.groton.org | override |
| Board of Trustees - Groton School | www.groton.org/about/board-of-trustees | supplemental_backfill |
| Fast Facts - Groton School | www.groton.org/about/fast-facts | supplemental_backfill |
| Our Headmaster - Groton School | www.groton.org/about/our-headmaster | supplemental_backfill |
| Sustainability - Groton School | www.groton.org/about/sustainability | supplemental_backfill |
All Canonical Metrics
| Metric | Value | Evidence |
|---|---|---|
| Grades Served | Second Form through Sixth Form | “Second Formers will take English, math, science, Latin, a World Language … and art … Third Formers will all take English, math, one language, art … Upper Schoolers will take five full credits…” |
| Lowest Grade | - | Second Form through Sixth Form |
| Highest Grade | - | Second Form through Sixth Form |
| Postgraduate Offered | - | Second Form through Sixth Form |
| Boarding Status | Boarding | “Because Groton is a residential school and teachers are readily available for extra help outside of the class…” |
| Boarding Status Code | boarding | Boarding |
| School Type | - | - |
| School Type Code | - | - |
| Enrollment | 385 | 385 Students |
| Residential Enrollment | - | - |
| Day Enrollment | - | - |
| Student-Teacher Ratio | 4 | 4:1 Student-Faculty Ratio |
| Founded Year | 2012 | established in 2012 |
| School Leadership | - | - |
| Key Contacts | - | “Groton School · P.O. Box 991 · Groton, Massachusetts 01450-0991 Phone: 978-448-3363 · FAX: 978-448-3100 · www.groton.org” |
| Accreditations | - | - |
| School Codes | - | - |
| AP Courses | 10 | AP-designated course titles appear across the catalog: “8350 AP Music Theory” p.13; “4430 AP Latin” p.40; “3550 AP French Language” p.44; “3510 AP Spanish Language” p.45; “2760 AP Calculus AB” and “2770 AP Calculus BC” p.48; “2860 AP Statistics” and “2960 AP Computer Science” p.49; “5630 AP Biology” and “5640 AP Chemistry” p.54. Courses that merely prepare for, encourage, or reference AP exams without an AP-designated course title were not counted. |
| Average Class Size | 480 | Average Class Size 480 |
| IB Program | - | - |
| Honors Program | Yes | “5450 Chemistry Honors (Lab) (Y)” and “5590 Calculus-Based Physics Honors (Lab) (Y)” are listed as course offerings. |
| Advanced Course Notes | Advanced Placement courses are available in several departments; some non-AP courses are taught at a level that prepares students for AP examinations; independent study/tutorial options exist for Sixth Formers. | “Advanced Placement (AP) courses are available in several departments; in others, courses are taught at a level that prepares students for the Advanced Placement examination, such as US History and Fifth Form English. Options exist for independent study in the Sixth Form.” |
| Faculty Count | 91 | 91 Faculty |
| College Counseling Summary | - | - |
| Testing Policy | - | - |
| Testing Policy Code | - | - |
| Average SAT | - | - |
| Average ACT | - | - |
| Matriculation Summary | - | - |
| Top Colleges | - | - |
| States Represented | 30 | 30 States |
| Countries Represented | 24 | 24 Countries |
| Students of Color | 53 | 53% Students of Color |
| International Students | 14 | 14% International |
| Receiving Financial Aid | 44 | 44% of Students Receive Financial Aid |
| Tuition-Free Share | - | - |
| Applicants | - | - |
| Admitted | - | - |
| Matriculated | - | - |
| Admit Rate | - | - |
| Yield Rate | - | - |
| Class Rank Policy | - | - |
| Class Rank Policy Code | - | - |
| Weighted Grades | - | - |
| Weighted Grades Policy | - | - |
| Disciplinary Reporting | - | - |
| Boarding Model | unknown | unknown |
| Selectivity Category | limited_evidence | limited_evidence |
| Academic Rigor Category | high | high |
| Testing Policy Category | not_reported | not_reported |
| College Counseling Category | not_reported | not_reported |
| Student Body Reach Category | limited_evidence | limited_evidence |
| Access Category | limited_evidence | limited_evidence |
| Outcome Category | limited_evidence | limited_evidence |
| Signals | - | Boarding/residential status is supported by the catalog statement that Groton is a “residential school,” but the supplied evidence does not distinguish boarding-only from boarding-and-day enrollment.; No applicant, admitted, matriculated, admit-rate, yield-rate, SAT, or ACT data are reported, so selectivity cannot be categorized beyond limited evidence.; Academic rigor evidence includes a standard five full-credit course load, math required through Precalculus or Fifth Form, 10 AP-designated courses, honors-level courses, AP-level non-AP coursework in some departments, and Sixth Form tutorials/independent study options.; Sixth Form Intensive Program evidence indicates an applied/advanced spring option equivalent to four regular courses, supporting a high rigor designation.; Testing policy for college admission is not reported in the supplied evidence.; College counseling summary, named counseling contacts, and counseling program details are not reported.; States represented, countries represented, international-student share, and related reach indicators are not reported.; Financial-aid participation and tuition-free share are not reported, so access cannot be assessed beyond limited evidence.; College matriculation summary, top-college list, and standardized testing outcomes are not reported. |