| School Name | Street Address | City | State |
| Rabun Gap-Nacoochee School |
339 Nacoochee Drive
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Rabun Gap | GA |
| Rancho Solano Preparatory School |
3540 West Union Hills
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Glendale | AZ |
| Rectory School |
528 Pomfret Street , P.O. Box 68
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Pomfret | CT |
| Robert Treat Academy Charter School |
443 Clifton Avenue
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Newark | NJ |
| Ross School |
18 Goodfriend Drive
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East Hampton | NY |
| Rumsey Hall School |
201 Romford Road
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Washington Depot | CT |