| Application deadline | March 19, 2027 (2027 cycle) | January 31, 2027 (2027 cycle) | January 13, 2027 (2027 cycle) |
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| Cost | Unconfirmed — check official site | Unconfirmed — check official site | $4,180–$15,980 (2027 cycle) |
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| Financial aid | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | Catalog terms: In-person breakfast and lunch: $0. Provided during the one-day Bloomington session.; 2027: Unconfirmed — check official site | Unconfirmed — check official site | 2027 application fee: $75 (2027 cycle) |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Grades 10–12; Grade timing: Unconfirmed — check official site | Grade 11 (provider uses rising grades) | Unconfirmed — check official site |
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| Additional eligibility | Requirement: Have at least a 3.5 cumulative high-school GPA on a 4.0 scale; Requirement: For virtual sessions, be a current sophomore, junior, or senior; Requirement: For summer in-person sessions, be a rising junior or senior; Requirement: Submit both required short essays and GPA information by the deadline; Requirement: Be available for the full selected one-day or two-session program; Exclusion: The program is open to all eligible students, not only students who identify as women; Exclusion: Applicants below the 3.5 GPA minimum are directed to other programs; Exclusion: Late applications receive no exceptions, including technical-delay cases; Exclusion: Participation does not guarantee Kelley or IU admission, college credit, scholarship, recommendation, internship, job, or college-admissions advantage | Residency: Resident of the Commonwealth of Pennsylvania; Requirement: Be a rising high-school senior; Requirement: Complete junior year immediately before the programme; Requirement: Secure two classroom-teacher recommendations from different PGSS core subjects; Requirement: Secure a school-counselor recommendation; Requirement: Be able to attend the complete residential session; Exclusion: Students who are not Pennsylvania residents are ineligible; Exclusion: Recommendations from overlapping core subjects do not satisfy the two-subject rule; Exclusion: Incomplete or late applications are not reviewed | Ages 16–18; Citizenship: International students may apply to eligible formats with visa/English requirements; Citizenship: Financial aid is limited to U.S. citizens, permanent residents, and DACA recipients; Residency: Residential students live on campus; Residency: Commuters must live with a parent/guardian or approved adult age 25+ within reasonable commuting distance in New England; Residency: Online students participate from home; Requirement: Graduate high school and enter college in 2027, 2028 or 2029.; Requirement: Be at least 16 by June 13, 2027 and not turn 19 before July 31, 2027.; Requirement: Show maturity and academic readiness for intensive college-level work; Requirement: Meet selected-course prerequisites; Requirement: Submit English-proficiency evidence if English is not the native language; Requirement: Clear the calendar for the full program, especially residential study; Exclusion: An applicant may apply to only one Harvard Summer School high-school program in a year; Exclusion: International students using a Harvard-sponsored I-20 cannot take online classes; Exclusion: Participation does not guarantee Harvard College admission or another institution's acceptance of credit; Exclusion: No minimum GPA or required PSAT/SAT/ACT score is published |
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| Session dates or duration | Catalog terms: 0.14–1.14 weeks; 2027: Unconfirmed — check official site | Starts June 27, 2027; Ends July 31, 2027; 5 weeks (2027 cycle) | Catalog terms: 4–7 weeks; 2027: Unconfirmed — check official site |
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| Format | In person / Online | In person | In person / Online |
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| Housing and supervision | Non-residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Unconfirmed — check official site |
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| Location | Bloomington, Indiana, Indiana University Bloomington campus and live virtual sessions | Pittsburgh, Carnegie Mellon University, Pennsylvania | Cambridge, Massachusetts |
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| Selection and application | Selection: Kelley calls KWLI selective, limits seats, and reviews cumulative GPA and application essays after the deadline. It does not publish applicant totals, cohort sizes by session, acceptance rates, geographic quotas, or scoring weights. Application materials: 100-word statement explaining why the student hopes to participate | Selection: PGSS describes a statewide application and admission process but the current official pages publish neither cohort size, applicant count nor acceptance rate. Application materials: Narrative essay introducing the applicant and explaining interest in PGSS; Topical essay about a significant influence on scientific interest or a proud achievement; Two recommendations from classroom teachers in different PGSS core subject areas; One school-counselor recommendation | Selection: Harvard evaluates essays, transcripts/current grades, counselor report, GPA, maturity, readiness, and program fit holistically; it publishes no minimum GPA and does not require standardized academic tests. Application totals, admit rate, option/course capacities, waitlist odds, and scholarship odds are not published. Application materials: Student-created online application and short essays |
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| Official sources | Source 1 · checked 2026-10-09Source 2 · checked 2026-10-09 | Source 1 · checked 2026-10-09Source 2 · checked 2026-08-22 | Source 1 · checked 2026-10-09Source 2 · checked 2026-10-09Source 3 · checked 2026-10-09Source 4 · checked 2026-10-09Source 5 · checked 2026-10-09 |
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