Smith Estate (Suffolk County, New York)
Smith Field (Allen County, Indiana)
Smith Robertson Elementary School (Hinds County, Mississippi)
Smith Street Primary School (Providence County, Rhode Island)
Smith Valley School (La Crosse County, Wisconsin)
Smith-Turner House (Ingham County, Michigan)
Smithfield (Russell County, Virginia)
Smithville Public School Building (Lawrence County, Arkansas)
Smithville Seminary (Providence County, Rhode Island)
Smithville--North Scituate (Providence County, Rhode Island)
Smoketown School (Berkeley County, West Virginia)
Smyrna Elementary School (Chenango County, New York)
Snider Hall (Dallas County, Texas)
Snokomo School (Wabaunsee County, Kansas)
Snoqualmie School Campus (King County, Washington)
Snow Academy Building (Sanpete County, Utah)
Snow Hill Colored High School (Greene County, North Carolina)
Snow Hill Normal and Industrial Institute (Wilcox County, Alabama)
A historic African American school in Snow Hill, Alabama.
Snow School (Pushmataha County, Oklahoma)
Snowflake Stake Academy Building (Navajo County, Arizona)
Snyderville Schoolhouse (Columbia County, New York)
Soap Creek School (Benton County, Oregon)
Sodom Schoolhouse (Northumberland County, Pennsylvania)
Soliz--Baca House (Grant County, New Mexico)
Solomon Grove Smith--Hughes Building (Faulkner County, Arkansas)
Somerset Academy (Somerset County, Maine)
Somerville City Hall (Middlesex County, Massachusetts)
Sonner Hall (Warren County, Virginia)
Sonoma Grammar School (Sonoma County, California)
Sonoma State Home--Main Building (Sonoma County, California)
Sopchoppy High School Gymnasium, Old (Wakulla County, Florida)
Sopchoppy School (Wakulla County, Florida)
Sound School House (Hancock County, Maine)
South Beaver School (Coconino County, Arizona)
South Branch Schoolhouse (Somerset County, New Jersey)
South Canon High School (Fremont County, Colorado)
South Carolina State Arsenal (Charleston County, South Carolina)
South Center School House (Berkshire County, Massachusetts)
South Dakota School for the Blind (Deuel County, South Dakota)
South Dakota School for the Deaf (Minnehaha County, South Dakota)
South Elementary School (Cross County, Arkansas)
South Florida Military College (Polk County, Florida)
South Grade School Building (White County, Indiana)
South Hall (Alameda County, California)
South High School (Franklin County, Ohio)
South Jacksonville Grammar School (Duval County, Florida)
South Junior High School (Norfolk County, Massachusetts)
South Junior High School (Grand Forks County, North Dakota)
South Junior High School (Niagara County, New York)
South Main Street School (Hampden County, Massachusetts)
South Reading Schoolhouse (Windsor County, Vermont)
South Ridge Schoolhouse (Lorain County, Ohio)
South Salem Academy (Ross County, Ohio)
South School (Franklin County, Massachusetts)
South School (Middlesex County, Massachusetts)
South School (Dane County, Wisconsin)
Former School now serving as an apartment building
South School (Litchfield County, Connecticut)
South School (Greene County, Ohio)
South Side High School (Allegheny County, Pennsylvania)
South Side School (Broward County, Florida)
South Side School (Henry County, Illinois)
South Side School (Sarasota County, Florida)
South Stone School House (Grand Isle County, Vermont)
South Vicksburg Public School No. 200 (Warren County, Mississippi)
South Ward School (Centre County, Pennsylvania)
South Ward School (Pinellas County, Florida)
South Ward School (Howard County, Iowa)
Southbury Training School (Unspecified county, Connecticut)
Southern Christian Institute (Hinds County, Mississippi)
Southgate Public School (Campbell County, Kentucky)
Southport High School, Old (Marion County, Indiana)
Southside School (Miami-Dade County, Florida)
Southside School (Washoe County, Nevada)
Southwark School (Philadelphia County, Pennsylvania)
Southwest District School (New Haven County, Connecticut)
Southwest District School (Hartford County, Connecticut)
Southwood Two-Teacher School (Onondaga County, New York)
Spalding Hall, St. Joseph's College (Nelson County, Kentucky)
Spanish Creek School (Gallatin County, Montana)
Spartansburg School (Randolph County, Indiana)
Large abandoned school building
Spaulding School Gymnasium--Auditorium (Hughes County, Oklahoma)
Speed Hall (Knox County, Kentucky)
Speer School (Choctaw County, Oklahoma)
Spencer Academy (Choctaw County, Oklahoma)
Spencer--Penn School (Henry County, Virginia)
Spencerian Business College (Milwaukee County, Wisconsin)
Colonial Revival-styled brick building serving several tenants for over 100 years
Spencertown Academy (Columbia County, New York)
Spencerville School Campus (Choctaw County, Oklahoma)
Spooner Hall, University of Kansas (Douglas County, Kansas)
Spring City School (Sanpete County, Utah)
Spring Creek School (Perkins County, South Dakota)
Spring Creek School (Sumner County, Kansas)
Spring Dell School (Lincoln County, Oklahoma)
Spring Garden School No. 1 (Philadelphia County, Pennsylvania)
Spring Garden School No. 2 (Philadelphia County, Pennsylvania)
Spring Hill College Quadrangle (Mobile County, Alabama)
Spring Valley School (Douglas County, Colorado)
Spring Valley School (Polk County, Oregon)
Spring Valley School District 120 Building (Washington County, Arkansas)
Springfield Graded School (Washington County, Kentucky)
Springfield High School (Orangeburg County, South Carolina)
Springfield Public School (Allegheny County, Pennsylvania)
Springfield School (Richmond, Virginia)
Springfield Schoolhouse (Baca County, Colorado)
Springfield Township School (Richland County, Ohio)
Springhill School (Gallatin County, Montana)
Spruce Grove School (Chester County, Pennsylvania)
Spruce Hall (Larimer County, Colorado)
Spurgin Residence (Mahaska County, Iowa)
Square Schoolhouse (Rockingham County, New Hampshire)
SS Peter & Paul Catholic School (Boyd County, Nebraska)
St Casimir's Church Complex (Albany County, New York)
St. Anastasia Catholic School, Old (St. Lucie County, Florida)
St. Andrew School (Bay County, Florida)
St. Anthony de Padua Parish School (Philadelphia County, Pennsylvania)
St. Anthony School (Broward County, Florida)
St. Augustine Hall (Wyandotte County, Kansas)
St. Augustine's College Campus (Wake County, North Carolina)
St. Basil's Academy (Iberville Parish, Louisiana)
St. Benedict's Catholic School (Musselshell County, Montana)
St. Brigid's School and Convent (Baltimore, Maryland)
St. Catherine's School (Richmond, Virginia)
St. Cecilia Academy (Davidson County, Tennessee)
St. Cecilia School (Lafayette Parish, Louisiana)
St. Cecilia School Building (Jefferson County, Kentucky)
St. Christopher's Episcopal Mission (San Juan County, Utah)
St. Christopher's School (Richmond, Virginia)
St. Columba Catholic Campus (Jefferson County, Kentucky)
St. Columba School (Schenectady County, New York)
St. Elizabeth of Hungary (Baltimore, Maryland)
St. Euphemia's School and Sisters' House (Frederick County, Maryland)
St. Francis Mission (Todd County, South Dakota)
St. Francis Seminary (Hamilton County, Ohio)
St. George Elementary School (Washington County, Utah)
St. George's School and Convent (Hillsborough County, New Hampshire)
St. Gregory's Abbey and College (Pottawatomie County, Oklahoma)
St. Helena High School (Napa County, California)
St. Hyacinth School and Convent (Cumberland County, Maine)
St. Ignatius College (Cook County, Illinois)
St. Ignatius High School (Cuyahoga County, Ohio)
St. Johannes Danske Lutherske Kirke (Hamilton County, Nebraska)
St. John's Lutheran School (Shawnee County, Kansas)
St. John's Military Academy (Waukesha County, Wisconsin)
St. Joseph Convent and Academy (Logan County, Oklahoma)
St. Joseph Indian Normal School (Jasper County, Indiana)
St. Joseph School (St. Joseph County, Indiana)
St. Joseph's Academy (Ramsey County, Minnesota)
St. Joseph's Academy and Convent (Cumberland County, Maine)
St. Joseph's Basilica (Alameda County, California)
St. Joseph's Catholic Church (Latah County, Idaho)
St. Joseph's Convent and School (Middlesex County, Massachusetts)
St. Joseph's Industrial School (Kent County, Delaware)
St. Joseph's Mission (Yakima County, Washington)
St. Joseph's on the Brandywine (New Castle County, Delaware)
St. Joseph's School (York County, Maine)
St. Joseph's School (Berkshire County, Massachusetts)
St. Joseph's School (Ascension Parish, Louisiana)
St. Joseph's School (Middlesex County, Massachusetts)
St. Joseph's School (Fond du Lac County, Wisconsin)
St. Joseph's Seminary (Sullivan County, New York)
St. Lucie High School (St. Lucie County, Florida)
St. Mark United Presbyterian Church (Elbert County, Colorado)
St. Martinville Elementary School (St. Martin Parish, Louisiana)
St. Mary School (Fond du Lac County, Wisconsin)
St. Mary School (Fond du Lac County, Wisconsin)
St. Mary's Academy (Ramsey County, North Dakota)
St. Mary's Academy (Scott County, Iowa)
St. Mary's Academy (Warren County, New York)
St. Mary's Academy and College (Crawford County, Wisconsin)
St. Mary's Academy Historic District (Grant County, New Mexico)
St. Mary's Benefical Society Hall (Prince George's County, Maryland)
St. Mary's Catholic School (Lorain County, Ohio)
St. Mary's College (Wake County, North Carolina)
St. Mary's Complex (Bristol County, Massachusetts)
St. Mary's Girls Grade School (Erie County, Ohio)
St. Mary's Hall (Rice County, Minnesota)
St. Mary's Hall, University Of Dayton (Montgomery County, Ohio)
St. Mary's Infirmary (St. Louis, Missouri)
St. Mary's Institute (Bexar County, Texas)
St. Mary's Institute of O'Fallon (St. Charles County, Missouri)
St. Mary's Parochial School (Hartford County, Connecticut)
St. Mary's School (Erie County, Ohio)