| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $5,518; 2027: Unconfirmed — check official site | Last year's cycle (2026): $6,600; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Financial aid | Last year's cycle (2026): 2026 need-based application and program assistance: Up to $5,564. Could assist with the $46 application fee and $5,518 program cost based on family income, family size and available funds; actual award not guaranteed.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Need-based financial aid: Up to $6,600. Aid was available up to the full program fee; admission was decided before financial-aid consideration.; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | Last year's cycle (2026): 2026 COSMOS application fee: $46. Nonrefundable; pending fee-waiver review could change when or whether payment was required.; Credit-card transaction fee on program payments: Amount: Unconfirmed — check official site. Approximately 2.5% when paying program costs by credit card; application fee exempt.; 2026 need-based application and program assistance: Up to $5,564. Could assist with the $46 application fee and $5,518 program cost based on family income, family size and available funds; actual award not guaranteed.; Full-financial-aid attendance deposit: $200. Required only for admitted students offered full aid and refunded to the legal guardian after successful completion.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Need-based financial aid: Up to $6,600. Aid was available up to the full program fee; admission was decided before financial-aid consideration.; Application fee: $0. Applying to MathPath is free.; 2027: Unconfirmed — check official site | Catalog terms: Typical participant activity fee: $200–$350. Programs may charge the fee; waivers may be available and some divisions pay it.; 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 9–12 (provider uses rising grades) | Unconfirmed — check official site | Grades 10–11 when applying; summer rising grade is one higher |
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| Additional eligibility | Residency: Attend high school in person in California; Requirement: Be rising into grade 9, 10, 11 or 12 for the program fall year; Requirement: Attend high school in person in California; Requirement: Demonstrate academic excellence and preparation for the selected STEM cluster; Requirement: Complete cluster-specific course prerequisites; Requirement: Live on the host UC campus for the full program; Requirement: Be a first-time COSMOS participant; Exclusion: Students not attending a California high school in person; Exclusion: Students who previously attended any COSMOS program; Exclusion: Applicants outside the rising-grade 9-12 range; Exclusion: Applicants unable to live on campus for the full program; Exclusion: Late application, supporting, payment or admission materials; Exclusion: Assuming a 3.5 GPA is an absolute statewide minimum rather than the published typical profile | Ages 11–14; Requirement: Turn 11 before the program starts; Requirement: Turn 15 only after the program ends; Requirement: Complete the Qualifying Test independently; Requirement: Demonstrate mathematical ability, interest, and persistence; Exclusion: Students outside the published age window | Residency: Virginia resident eligible for free public education in the Commonwealth; Residency: Public, private, homeschool, and certain Virginia students attending out-of-state schools follow different nomination procedures; Requirement: Be a current sophomore or junior when applying; Requirement: Be identified as gifted or judged by the school/division to be an advanced competitive applicant; Requirement: Apply through the local school division or private-school coordinator; Requirement: Commit to the full residential session and all scheduled activities; Requirement: JLAB applicants must meet its separate age-16 and U.S.-citizenship requirements; Requirement: Engineering and marine-science applicants benefit from prior knowledge of research design; Exclusion: Prior attendance at a Summer Residential Governor's School; Exclusion: Simultaneous application to another Summer Residential Governor's School or Virginia Foreign Language Academy; Exclusion: Direct individual submission to VDOE or a host university; Exclusion: Students unable to commit to the full residential session except for genuine medical or family emergencies |
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| Session dates or duration | Catalog terms: 4 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts June 28, 2026; Ends July 26, 2026; 4 weeks; 2027: Unconfirmed — check official site | Catalog terms: 2.86–3.14 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 | Davis, California, Irvine, California, Los Angeles, California, Merced, California, San Diego, California, Santa Cruz, California, UC Davis, UC Irvine, UCLA, UC Merced, UC San Diego, UC Santa Cruz | Portland, Oregon | Blacksburg, Radford, Williamsburg, Lynchburg, Virginia |
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| Selection and application | Selection: Each of six campuses accommodates roughly 160-200 students, and clusters typically enroll 20-25 with a commonly reported 5:1 student-to-faculty ratio. Admissions are competitive and based on academic merit relative to the selected topic, but applicant count and statewide acceptance rate were not published. Application materials: One personal statement; One required teacher recommendation, with two recommended | Selection: Merit-based selection centered on the Qualifying Test and application context | Selection: Competitive two-stage selection: a local school/division committee nominates students and a state committee selects participants. Capacity varies sharply by program, from six Marine Science mentorship seats and 12 Engineering seats to 250 Visual and Performing Arts seats; nomination does not guarantee acceptance. Application materials: Two recommendations; Two essays for academic and mentorship programs |
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| Official sources | Source 1 · checked 2026-08-22Source 2 · checked 2026-08-22Source 3 · checked 2026-08-22Source 4 · checked 2026-08-22Source 5 · checked 2026-08-22Source 6 · checked 2026-08-22Source 7 · checked 2026-08-20 | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20Source 4 · checked 2026-08-20 | Source 1 · checked 2026-08-21Source 2 · checked 2026-08-21Source 3 · checked 2026-08-20 |
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