| 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): $5,075; 2027: Unconfirmed — check official site | Catalog terms: $3,645–$3,995; 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): Need-based tuition scholarship for admitted students: Amount: Unconfirmed — check official site. Limited and competitive; requires a separate application with essays.; 2027: Unconfirmed — check official site | Catalog terms: Full or partial merit/need-based grant: Amount: Unconfirmed — check official site; PCSE to CCS undergraduate scholarship: $4,000. For completers with a C or better who enroll full-time at CCS after high school; paid as $1,000 a year for up to four years.; 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): Non-refundable application fee: $50. Waived for applications received by the Early Bird deadline.; Health insurance fee (international students only): $90; Need-based tuition scholarship for admitted students: Amount: Unconfirmed — check official site. Limited and competitive; requires a separate application with essays.; 2027: Unconfirmed — check official site | Catalog terms: Possible additional concentration materials: $50–$75; Full or partial merit/need-based grant: Amount: Unconfirmed — check official site; PCSE to CCS undergraduate scholarship: $4,000. For completers with a C or better who enroll full-time at CCS after high school; paid as $1,000 a year for up to four years.; 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 | Grades 8–12 when applying; check the provider's rules for graduating seniors | Grades 9–12; Grade timing: Unconfirmed — check official site |
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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 | Requirement: Open to students currently in grades 8–12 when applying; Requirement: Good academic standing with at least a 2.0 GPA; Requirement: International students need no visa or TOEFL score for the Academies | Requirement: Open to grades 9–12 |
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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 7, 2026; Ends June 19, 2026; 2 weeks; 2027: Unconfirmed — check official site | Catalog terms: 3 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | In person |
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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 | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Boston, MA | Washington, DC | Detroit, MI |
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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: Earlier Academy admissions described rolling review and first-come seat registration; next-cycle availability is not established. Application materials: 300- to 500-word personal statement | Selection: Standard paid registration appears capacity-based by studio concentration, with seat counts and waitlists shown in the registration system. Separate merit/need and sponsored fellowship scholarships are competitively awarded; CCS does not publish a universal PCSE acceptance rate. |
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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 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-22Source 5 · checked 2026-08-22 | Source 1 · checked 2026-10-24Source 2 · checked 2026-08-21Source 3 · checked 2026-08-21 |
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