St. Mary's School (New Castle County, Delaware)
St. Mary's School (Brookings County, South Dakota)
St. Mary's School (Blaine County, Oklahoma)
St. Matthew High School (Natchitoches Parish, Louisiana)
St. Matthew's School (Ramsey County, Minnesota)
St. Matthews School (Wake County, North Carolina)
St. Michael School & Convent (Trego County, Kansas)
St. Michael's Mission (Fremont County, Wyoming)
St. Michael's Parochial School (Grand Forks County, North Dakota)
St. Norbert College Main Hall (Brown County, Wisconsin)
Brick Romanesque Revival school building
St. Onge Schoolhouse (Lawrence County, South Dakota)
St. Patrick's Parish and Buildings (Hudson County, New Jersey)
St. Paul School Building (Madison County, Arkansas)
St. Paul's College (Brunswick County, Virginia)
St. Paul's School (Brunswick County, Virginia)
St. Peter Central School (Nicollet County, Minnesota)
St. Peter's Square (Allen County, Indiana)
St. Phillip School (Richland County, South Carolina)
St. Stanislaus Institute (Luzerne County, Pennsylvania)
St. Stanislaus Seminary (St. Louis County, Missouri)
St. Vincent de Paul School (Campbell County, Kentucky)
St. Vincent Orphanage and School Building (Santa Barbara County, California)
St. Vincent's College Building (Cape Girardeau County, Missouri)
St. Walburga's Academy (New York County, New York)
St.Bonifacius Kirche Complex (Jefferson County, Kentucky)
Stadium High School (Pierce County, Washington)
Chateau style school building completed in 1906
Stalnaker Hall (Monongalia County, West Virginia)
Stancioff House (Frederick County, Maryland)
Stanley Institute (Dorchester County, Maryland)
Stanley Patterson Hall (Dallas County, Texas)
Stanley School--Montclair School (Denver County, Colorado)
Stannard Schoolhouse (Caledonia County, Vermont)
Stanton Center (Anne Arundel County, Maryland)
Stanton Masonic Lodge and School (Haywood County, Tennessee)
Star Hall (Grand County, Utah)
Star School District 61 (Union County, South Dakota)
Stark School (Missoula County, Montana)
Starkey School (Roanoke County, Virginia)
Starkweather Religious Center (Washtenaw County, Michigan)
Starkweather School (Wayne County, Michigan)
State Asylum for the Deaf,Dumb and Blind (Alameda County, California)
State Normal Training School (Hampden County, Massachusetts)
State Street Public School (Essex County, New Jersey)
Statenville Consolidated School (Echols County, Georgia)
Stearns School (Polk County, North Carolina)
Steele Hall (Shelby County, Tennessee)
Stehekin School (Chelan County, Washington)
Stephen F. Austin Elementary School (Tarrant County, Texas)
Stephen Foster Elementary School (Jefferson County, Kentucky)
Stephens College, South Campus (Boone County, Missouri)
Sterling District No. 5 Schoolhouse (Cayuga County, New York)
Sterrett Sub-District School (Allegheny County, Pennsylvania)
Sterry Hall (Canyon County, Idaho)
Stevens High School (Lancaster County, Pennsylvania)
Stevens Point State Normal School (Portage County, Wisconsin)
1894 Italian Renaissance Building
Stevens School (York County, Pennsylvania)
Stevenson Primary School (Lauderdale County, Mississippi)
Steward's House-Foreign Mission School (Litchfield County, Connecticut)
Stewart Hall (Monongalia County, West Virginia)
Stewart Home School (Franklin County, Kentucky)
Stewart Indian School (Carson City, Nevada)
Stewart, A. T., Era Buildings (Nassau County, New York)
Stigler School Gymnasium--Auditorium (Haskell County, Oklahoma)
Stinson-Flake House (Navajo County, Arizona)
Stivers High School (Montgomery County, Ohio)
Stock Judging Pavilion (Brookings County, South Dakota)
Stock Pavilion (Dane County, Wisconsin)
Stockton Hall (Washington, District of Columbia)
Stone Academy (Johnson County, Iowa)
Stone Arabia School (Onondaga County, New York)
Stone Hall (Tompkins County, New York)
Stone Hall, Atlanta University (Fulton County, Georgia)
Stone School (Scott County, Iowa)
Stone School (Rockingham County, New Hampshire)
Stone School (Washtenaw County, Michigan)
Stone Schoolhouse (Sagadahoc County, Maine)
Stonefield (Charlottesville, Virginia)
Stonewall Jackson School (Richmond, Virginia)
Stoney Fork School (Buncombe County, North Carolina)
Stonington High School (New London County, Connecticut)
Stony Hill School (Ozaukee County, Wisconsin)
Stony Hill School (Hartford County, Connecticut)
Storey Gymnasium (Laramie County, Wyoming)
Story Grammar School (Essex County, Massachusetts)
Stoughton High School (Dane County, Wisconsin)
Stowe Teachers College (St. Louis, Missouri)
Strafford Union Academy (Strafford County, New Hampshire)
Strang School District No. 36 (Fillmore County, Nebraska)
Strassberger's Conservatory (St. Louis, Missouri)
Stratford Junior High School (Arlington County, Virginia)
Stratford School (Grant County, Washington)
Strawberry School (Gila County, Arizona)
Street Manual Training School (Dallas County, Alabama)
Strong Hall (Douglas County, Kansas)
Strong Hall houses the Administration and other university support services.
Stroud Grade School (Lincoln County, Oklahoma)
Stroud School, Old (Lincoln County, Oklahoma)
Sts. Peter and Paul Academy (Wayne County, Michigan)
Students' Hall (New York County, New York)
Studio Building (Alameda County, California)
Sturgis High School (Meade County, South Dakota)
Sturtevant Hall (Oxford County, Maine)
Stuyvesant Hall (Delaware County, Ohio)
Sudbury School No. 3 (Rutland County, Vermont)
Sue Bennett Memorial School Building (Laurel County, Kentucky)
Sue McBeth Cabin (Idaho County, Idaho)
Sugarloaf School (Jerome County, Idaho)
Summer Public School (Cooper County, Missouri)
Summerfield School (Le Flore County, Oklahoma)
Summerton High School (Clarendon County, South Carolina)
Summit Hill High School (Carbon County, Pennsylvania)
Summit School (King County, Washington)
Sumner High School (Bremer County, Iowa)
Sumner High School (Worth County, Georgia)
Sumner High School and Athletic Field (Wyandotte County, Kansas)
Sumner School (Noble County, Oklahoma)
Abandoned School
Sunbury High School (Gates County, North Carolina)
Sundance School (Crook County, Wyoming)
Sunnyside (Mecklenburg County, Virginia)
Sunset Center (Monterey County, California)
Sunset High School (St. Landry Parish, Louisiana)
Sunshine School (Boulder County, Colorado)
Superior School (Mineral County, Montana)
Sutter Creek Grammar School (Amador County, California)
Svea Land Company Office (Baldwin County, Alabama)
Swanger Hall (Cassia County, Idaho)
Swanton School (Franklin County, Vermont)
Swayne Hall (Talladega County, Alabama)
Swift-Kyle House (Muscogee County, Georgia)
Switchback School (Bath County, Virginia)
Sycamore School (Erie County, Ohio)
Sydenstricker School (Fairfax County, Virginia)
Sylvan School (Ripley County, Missouri)
Sylvia Rural High School (Reno County, Kansas)
Tabor School (Bon Homme County, South Dakota)
Tacoma School (Wise County, Virginia)
Taft Junior High School (Oklahoma County, Oklahoma)
Taliesin (Iowa County, Wisconsin)
Taliesin West (Maricopa County, Arizona)
Tallulah Falls School (Habersham County, Georgia)
Tamassee DAR School (Oconee County, South Carolina)
Historic school operated by the Daughters of the American Revolution
Tangipahoa Parish Training School Dormitory (Tangipahoa Parish, Louisiana)
Tangipahoa School (Tangipahoa Parish, Louisiana)
Tankersley Rosenwald School (Montgomery County, Alabama)
A historic American Craftsman-style school building built in 1922.
Tarpon Springs High School, Old (Pinellas County, Florida)
Tarryall School (Park County, Colorado)
Tate Elementary School (Pickens County, Georgia)
Tauy Jones Hall (Franklin County, Kansas)
Tauy Jones House (Franklin County, Kansas)
Taylor Allerdice High School (Allegheny County, Pennsylvania)
Taylor Country School (Marshall County, Iowa)
Open by appointment
Taylor County Clerk's Office (Taylor County, Kentucky)
Taylor School (Scott County, Iowa)
Teaticket School (Barnstable County, Massachusetts)
Technical High School (Salt Lake County, Utah)
Teller Mission Orphanage (Nome Census Area, Alaska)
Temple Intervale School (Franklin County, Maine)
Tennga School (Murray County, Georgia)
Tenth Ward Square (Salt Lake County, Utah)
Texas Hall, Old Trinity University (Limestone County, Texas)
Textile Building (Oktibbeha County, Mississippi)
Thaddeus Stevens School (Washington, District of Columbia)
Thaddeus Stevens School of Observation (Philadelphia County, Pennsylvania)
The Clay School (Wayne County, Michigan)
The Columns (Hertford County, North Carolina)
The Old Crescent (Monroe County, Indiana)
The Presbytere (Orleans Parish, Louisiana)
Theodore Judah School (Sacramento County, California)
Theodore Roosevelt Elementary School (Jefferson County, Kentucky)
Theodore Roosevelt High School (Polk County, Iowa)
Theodore Roosevelt Junior High School (Philadelphia County, Pennsylvania)
Thida Grove School (Independence County, Arkansas)
Third Ward School (Sheboygan County, Wisconsin)
Thomas A. Hendricks Library (Jefferson County, Indiana)
Thomas Brodhead House (Columbia County, New York)
Thomas Buchanan Read School (Philadelphia County, Pennsylvania)
Thomas C. Miller Public School (Marion County, West Virginia)
Historic School in Fairmont, WV
Thomas Creighton School (Philadelphia County, Pennsylvania)
Thomas Dunlap School (Philadelphia County, Pennsylvania)
Thomas Durham School (Philadelphia County, Pennsylvania)
Thomas Fitzsimons Junior High School (Philadelphia County, Pennsylvania)
Thomas Hall (Alachua County, Florida)
Thomas Indian School (Erie County, New York)