| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | Last year's cycle (2026): $4,495; 2027: Unconfirmed — check official site | Last year's cycle (2026): $1,420–$1,791; 2027: Unconfirmed — check official site |
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| Financial aid | Last year's cycle (2026): Free for U.S. families with adjusted gross income under $80,000; need-based aid up to full cost: Amount: Unconfirmed — check official site. Aid for international students is decided case by case.; 2027: Unconfirmed — check official site | Last year's cycle (2026): NSLC Summer Program Scholarship: Amount: Unconfirmed — check official site. For students demonstrating financial need, academic merit, and school or community involvement.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Limited partial scholarships (no award exceeds 30% of the package fee): Amount: Unconfirmed — check official site. Competitive and contingent on available funding.; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | Last year's cycle (2026): Free for U.S. families with adjusted gross income under $80,000; need-based aid up to full cost: Amount: Unconfirmed — check official site. Aid for international students is decided case by case.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Enrollment deposit: Amount: Unconfirmed — check official site. Paid by credit or debit card with the online application.; NSLC Summer Program Scholarship: Amount: Unconfirmed — check official site. For students demonstrating financial need, academic merit, and school or community involvement.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Limited partial scholarships (no award exceeds 30% of the package fee): Amount: Unconfirmed — check official site. Competitive and contingent on available funding.; 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 | Grades 10–12; Grade timing: Unconfirmed — check official site | Unconfirmed — check official site | Grades 10–12 (provider uses rising grades) |
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| Additional eligibility | Ages 14–18; Requirement: Open to grades 10–12; Requirement: Have completed 9th grade (or its equivalent) by the first day of the program; Requirement: Not yet enrolled as a full-time college or university student; Requirement: Graduating seniors may attend in the summer between high school and college or during a gap year | Ages 14–18; Requirement: Have completed at least one year of high school; students may attend through the summer following high school graduation | Minimum age 13; Requirement: Open to rising grades 10–12; Requirement: Unweighted academic average of 3.0 or better (a GPA Exception Appeal is possible); Requirement: Graduating seniors are also eligible |
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| Session dates or duration | Starts June 27, 2027; Ends August 7, 2027; 6 weeks (2027 cycle) | Last year's cycle (2026): Starts June 12, 2026; Ends July 2, 2026; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts July 13, 2026; Ends July 31, 2026; 3 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | In person / Online |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Boston, MA | Washington, New York, DC, NY | College Park, MD |
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| Selection and application | Selection: About 80 high-school students are selected through demonstrated mathematical thinking in the problem set, academic context, recommendation, transcript, and short answers. PROMYS does not publish the current applicant count or acceptance rate. Application materials: One letter of recommendation | Selection: NSLC accepts direct applications as well as nominated or invited students and continues enrollment while space remains. The official pages do not publish applicant counts, acceptance rates, or a competitive selection rubric. | Selection: Competitive and space-limited, with applications reviewed first-come, first-served after requirements are met. Early applicants are more likely to receive their first course choice; no overall acceptance rate is published. |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20Source 7 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-08-22Source 6 · checked 2026-08-22 |
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