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The Ten Schools Admission Organization (TSAO) is a group of private, college-preparatory boarding schools in the Northeastern United States that cooperate in their outreach to prospective students.
TSAO was founded in 1952. [1] Its member institutions cooperate in their outreach to prospective students, sharing resources at domestic and international admission fairs. [2] [3]
Although several TSAO schools no longer publish their endowment figures, in 2016 the TSAO contained ten of the twenty wealthiest traditional college-preparatory boarding schools in the United States, as measured by total size of endowment. [4] Seven TSAO members are also members of the Eight Schools Association, another group of large college-preparatory boarding schools.
At times, TSAO schools adopt common policies with respect to applicants and admitted students, such as a uniform deadline to accept or reject offers of admission. [5] The TSAO does not have a uniform policy with respect to standardized testing, and two of its member schools remain test-optional as of the 2024-25 application cycle. [6] [7]
With one exception, every TSAO member educates both boarding and day students, and offers a post-graduate year. St. Paul's School educates only boarders, and admits neither post-graduates nor incoming seniors. [8]
| School | Location | Established | Enrollment (2021-22) | Campus type (NCES if available) | Postgraduate year Number of PG students | Standardized test required? | Source(s) |
|---|---|---|---|---|---|---|---|
| Choate Rosemary Hall (Choate) | Wallingford, CT | 1890 | 868 | Suburban | Yes (15-25) | No | [9] [6] |
| Deerfield Academy | Deerfield, MA | 1797 | 666 | Rural | Yes | Yes | [10] [11] |
| The Hill School | Pottstown, PA | 1851 | 520 | Suburban | Yes (14-20) | Yes | [12] [13] [14] |
| Hotchkiss School | Lakeville, CT | 1891 | 622 | Rural | Yes | Yes | [15] [16] [17] |
| Lawrenceville School | Lawrenceville, NJ | 1810 | 818 | Suburban | Yes | Yes | [18] [19] |
| Loomis Chaffee School | Windsor, CT | 1914 | 736 | Suburban | Yes (20-25) | No | [20] [21] [7] |
| Phillips Academy (Andover) | Andover, MA | 1778 | 1,187 | Suburban | Yes (~20) | Yes | [22] [23] [24] |
| Phillips Exeter Academy (Exeter) | Exeter, NH | 1781 | 1,064 | Suburban | Yes (~24) | Yes | [25] [26] [27] |
| St. Paul's School | Concord, NH | 1856 | 542 | Town | No | Yes | [28] [8] [29] |
| Taft School | Watertown, CT | 1890 | 601 | Suburban | Yes | Yes | [30] [31] |