| Application deadline | Unconfirmed — check official site | January 13, 2027 (2027 cycle) | Unconfirmed — check official site |
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| Cost | Catalog terms: Free attendance; check separate expenses; 2027: Unconfirmed — check official site | $4,180–$15,980 (2027 cycle) | Last year's cycle (2026): $7,208; 2027: Unconfirmed — check official site |
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| Financial aid | Unconfirmed — check official site | Need-based SSP scholarship (partial): Amount: Unconfirmed — check official site. For U.S. citizens, permanent residents or DACA recipients with excellent academic records; awards typically cover only part of the cost. (2027 cycle) | Last year's cycle (2026): Need-based financial aid and travel grants: Amount: Unconfirmed — check official site. Free for domestic students with household income under $85,000; case-by-case awards above that and for international students.; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | Unconfirmed — check official site | Application fee (non-refundable): $75; Need-based SSP scholarship (partial): Amount: Unconfirmed — check official site. For U.S. citizens, permanent residents or DACA recipients with excellent academic records; awards typically cover only part of the cost. (2027 cycle) | Last year's cycle (2026): Application: $0. Applying is free.; Need-based financial aid and travel grants: Amount: Unconfirmed — check official site. Free for domestic students with household income under $85,000; case-by-case awards above that and for international students.; 2027: Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Unconfirmed — check official site | Unconfirmed — check official site | Grades 9–12; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | Ages 13–18; Requirement: Open to young women and gender-expansive people | Minimum age 16; Requirement: Will graduate from high school and enter college in 2027, 2028 or 2029; Requirement: At least 16 years old by June 13, 2027 and not turning 19 before July 31, 2027; Requirement: No minimum GPA requirement | Requirement: Open to grades 9–12; Requirement: Must not have already graduated from high school; Requirement: Most participants have just finished 10th or 11th grade; students who just completed 9th grade with more advanced math have attended; Requirement: International students are welcome to apply |
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| Session dates or duration | Catalog terms: 2 weeks; 2027: Unconfirmed — check official site | Starts June 14, 2027; Ends August 6, 2027; 4–7 weeks (2027 cycle) | Last year's cycle (2026): Starts June 28, 2026; Ends August 8, 2026; 6 weeks; 2027: Unconfirmed — check official site |
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| Format | In person / Online | In person / Online | In person |
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| Housing and supervision | Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Chicago, Dallas, New York, Oakland, San Francisco, Seattle, St. Louis, Washington, London, IL, TX, NY, CA, WA, MO, DC | Cambridge, MA | Unconfirmed — check official site |
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| Selection and application | Unconfirmed — check official site | 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: Program application with essays | Selection: HCSSiM expected 51 students in 2026 and reported more strong applications than it could accept; admission was rolling and used the letter, recommendation and Interesting Test rather than an age cutoff. Application materials: Letter of recommendation from a sponsor who knows you in a mathematical context |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-10 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-10-24Source 6 · checked 2026-10-09 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-08-20 |
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