| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
|---|
| Cost | Last year's cycle (2026): $7,208; 2027: Unconfirmed — check official site | Catalog terms: Free attendance; check separate expenses; 2027: Unconfirmed — check official site | $6,850 (2027 cycle) |
|---|
| Financial aid | 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 | Unconfirmed — check official site | Deer Hill Foundation need-based scholarship: Amount: Unconfirmed — check official site. Awards are based on financial need and a completed application; award size varies with available funds. (2027 cycle) |
|---|
| Expenses and aid conditions | 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 | Unconfirmed — check official site | Tuition deposit with application: $750. Includes a non-refundable $150 administrative processing fee; $600 is refunded if the participant is not accepted.; Non-refundable application processing fee (part of the deposit): $150. Included in the $750 tuition deposit.; Refundable Outfitting Store deposit: $300. Due with the final payment; covers gear rental or purchases, and any unused portion is refunded after the program.; Credit card convenience fee for final payment: $100. Only when the final payment is made by credit card instead of check.; Deer Hill Foundation need-based scholarship: Amount: Unconfirmed — check official site. Awards are based on financial need and a completed application; award size varies with available funds. (2027 cycle) |
|---|
| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
|---|
| Eligibility | Grades 9–12; Grade timing: Unconfirmed — check official site | Grades 10–12 (provider uses rising grades) | Unconfirmed — check official site |
|---|
| Additional eligibility | 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 | Residency: GA; Requirement: Open to rising grades 10–12; Requirement: Live in the state of Georgia | Ages 16–18 |
|---|
| Session dates or duration | Last year's cycle (2026): Starts June 28, 2026; Ends August 8, 2026; 6 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts June 7, 2026; Ends June 12, 2026; 1 week; 2027: Unconfirmed — check official site | Starts July 1, 2027; Ends July 25, 2027 (2027 cycle) |
|---|
| Format | In person | In person | In person |
|---|
| 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 |
|---|
| Location | New residential campus for 2027 is not announced; Amherst, Massachusetts was the historical 2026 location | Milledgeville, GA | Mancos, CO |
|---|
| Selection and application | Selection: Application review uses the form, letter, Interesting Test, and mathematical sponsor recommendation; no current acceptance rate or 2027 capacity is published. Application materials: Letter of recommendation from a sponsor who knows you in a mathematical context | Selection: Historical 2026 programme information: The official 2026 page said 85 accepted students and limited places, with nonselected applicants waitlisted; it did not publish applicant totals or an acceptance rate. Application materials: Recommendation Form from a teacher or supervisor (students new to 21st Century Leaders) | Selection: Deer Hill reviews the application, references, health/readiness information, and available space; current capacity, applicant volume, and admit rate are not published. |
|---|
| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24 | 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 2026-10-10Source 5 · checked 2026-10-10 |
|---|