Founding year: 1849
Address: St. Paul's School, 11152 Falls Road P.O. Box 8100 Brooklandville, Maryland, 21022, United States
Founding year: 1922
Address: The Stony Brook School, 1 Chapman Parkway, Stony Brook, New York, 11790, United States
Founding year: 1923
Address: Stone Ridge School of the Sacred Heart, 9101 Rockville Pike, Bethesda, Maryland, 20814, United States
Founding year: 1965
Address: St. Michael's Abbey Preparatory School, 19292 El Toro Rd, Silverado, Alabama, 92676-9710, United States
Founding year: 1962
Address: St. Thomas More School, 45 Cottage Road, Oakdale, Connecticut, 06370, United States
Founding year: 1885
Address: St Mary's Preparatory, 3535 Commerce Rd, West Bloomfield Township, Michigan, 48324, United States
Founding year: 1864
Address: St. Mary's Academy, 4545 S University Blvd Englewood, Colorado, 80113, United States
Founding year: FindME
Address: St. Luke's School, 377 North Wilton Road New Canaan, Connecticut, 06840, United States
Founding year: 1860
Address: St. Lawrence Seminary High School, 301 Church Street Mt. Calvary, Wisconsin, 53057, United States
Founding year: 1842
Address: Saint James School, 17641 College Road Hagerstown,, Maryland, 21740, United States
Founding year: 1842
Address: St. Johnsbury Academy, 1000 Main Street St. Johnsbury, Vermont, 05819, United States
Founding year: 1890
Address: St. Catherine’s Academy, 215 N. Harbor Blvd. Anaheim, California, 92805, United States
Founding year: 1891
Address: St. Bernard Preparatory School, 1600 St. Bernard Drive, SE, Cullman, Alabama, 35055, United States
Founding year: 1884
Address: Staten Island Academy, 715 Todt Hill Road, Staten Island, New York, 10304, United States
Founding year: 1929
Address: St.Andrew's School, 350 Noxontown Rd Middletown, Delaware, 19709, United States
Founding year: 1821
Address: Academy of the Sacred Heart, 1821 Academy Road Grand Coteau, Louisiana, 70541, United States
Founding year: 1995
Address: Spring Street International School, 505 Spring St, Friday Harbor, Washington, 98250, United States
Founding year: 2011
Address: Springfield Commonwealth Academy, 1 Ames Hill Drive, Springfield, Maryland, 01105, United States
Founding year: FindME
Address: Springdale Preparatory School, 1000 Green Valley Rd, New Windsor, Maryland, 21776, United States
Founding year: 1892
Address: The Spence School, 22 East 91st Street New York, New York, 10128, United States
Founding year: 1924
Address: Southwestern Academy (San Marino Campus), 2800 Monterey Rd, San Marino, California, 91108, United States
Founding year: 1923
Address: South Kent School, 40 Bulls Bridge Road South Kent, Connecticut, 06785, United States
Founding year: 1898
Address: Southern Preparatory Academy, 174 Ward Circle Camp Hill, Alabama, 36850, United States
Founding year: 1925
Address: Solebury School, 6832 Phillips Mill Road New Hope, Pennsylvania, 18938, United States
Founding year: 1865
Address: St. Mary's School, 816 Black Oak Dr Medford, Oregon, 97504, United States
Founding year: 1987
Address: Santa Margarita Catholic High School, 22062 Antonio Parkway, Rancho Santa Margarita, California, 92688, United States
Founding year: 1859
Address: St. Mary's Academy, 1615 SW 5th Avenue, Portland, Oregon, 97201, United States
Founding year: 1907
Address: San Marcos Academy, 2801 Ranch Road 12 San Marcos, Texas, 78666, United States
Founding year: 1867
Address: The Storm King School, 314 Mountain Road, Cornwall-on-Hudson, Texas, 12520, United States
Founding year: 1857
Address: Saint John's Preparatory School, 2280 Watertower Road Collegeville,, Minnesota, 56321-4000, United States
Founding year: 1884
Address: St. John's Northwestern Military Academy, 1101 Genesee Street Delafield, Wisconsin, 53018, United States
Founding year: 1945
Address: San Joaquin Memorial High School, 1406 N. Fresno St., Fresno, California, 93703, United States
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