Founding year: 1958
Address: St. Croix Lutheran Academy, 1200 Oakdale Avenue West St. Paul, Minnesota, 55118, United States
Founding year: 1911
Address: St. Christopher's School, 711 St Christopher's Rd, Richmond, Virginia, 23226, United States
Founding year: 1923
Address: St. Charles Preparatory School, 2010 E Broad St. Columbus, Ohio, 43209, United States
Founding year: 1890
Address: St. Catherine’s Academy, 215 N. Harbor Blvd. Anaheim, California, 92805, United States
Founding year: 1884
Address: Staten Island Academy, 715 Todt Hill Road, Staten Island, New York, 10304, United States
Founding year: 1893
Address: St. Andrews School, 63 Federal Road, Barrington, Rhode Island, 02806, United States
Founding year: 1929
Address: St. Andrew's School, 350 Noxontown Road, Middletown, Delaware, 19709, United States
Founding year: 1929
Address: St.Andrew's School, 350 Noxontown Rd Middletown, Delaware, 19709, United States
Founding year: 1909
Address: St. Albans School, Mount St. Alban, Washington, 20016-5069, United States
Founding year: 1856
Address: St. Anne's - Belfield School, 2132 Ivy Rd Charlottesville, Virginia, 22903, United States
Founding year: 1917
Address: St. Catherine's School, 6001 Grove Avenue, Richmond, Virginia, 23226, United States
Founding year: 1890
Address: Saint Bede Academy, 24 W US HWY 6 Peru,, Illinois, 61354, United States
Founding year: 1905
Address: St. Agnes Academy, 9000 Bellaire Blvd. Houston, Texas, 77036, United States
Founding year: 1949
Address: St. Stephen's Episcopal School, 6500 St. Stephen's Dr., Austin, Texas, 78746, United States
Founding year: 1991
Address: St. Stephen's & St. Agnes School, 400 Fontaine St Alexandria, Virginia, 22302, United States
Founding year: 1728
Address: Sandy Spring Friends School, 16923 Norwood Rd, Sandy Spring, Maryland, 20860, United States
Founding year: 1958
Address: St. Pius X. Catholic High School, 2674 Johnson Road, NE. Atlanta, Georgia, 30345-1799, United States
Founding year: 1959
Address: St. Paul's School for Girls, 11232 Falls Road P.O. Box 8000 Brooklandville, Maryland, 21022, United States
Founding year: 1970
Address: Springwood School, 1814 Cherry Dr, Lanett, Alabama, 36863, 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: 1892
Address: The Spence School, 22 East 91st Street New York, New York, 10128, United States
Founding year: 1969
Address: St. Paul Academy & Summit School, 1712 Randolph Ave Saint Paul, Minnesota, 55105, United States
Founding year: 1924
Address: Southwestern Academy (San Marino Campus), 2800 Monterey Rd, San Marino, California, 91108, United States
Founding year: 2001
Address: Sonoma Academy, 2500 Farmers Lane Santa Rosa, California, 95404, United States
Founding year: 1925
Address: Solebury School, 6832 Phillips Mill Road New Hope, Pennsylvania, 18938, United States
Founding year: 1906
Address: St. Mark's School of Texas, 10600 Preston Road Dallas, Texas, 75230, United States
Founding year: 1865
Address: St. Mary's School, 816 Black Oak Dr Medford, Oregon, 97504, United States
Founding year: 1921
Address: St. Margaret's School, P.O. Box 158 Tappahannock, Virginia, 22560, United States
Founding year: 1842
Address: Saint Mary's School, 900 Hillsborough Street Raleigh,, North Carolina, 27603, United States
Founding year: 1987
Address: Santa Margarita Catholic High School, 22062 Antonio Parkway, Rancho Santa Margarita, California, 92688, United States
Founding year: 1879
Address: Saint Mary's Hall, 9401 Starcrest Drive San Antonio, Texas, 78217, United States
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