Built during 1930s

Robert Fulton School (Philadelphia County, Pennsylvania)
Robert G. Turner House (Greenville County, South Carolina)
Robert H. Goddard House (Chaves County, New Mexico)
Robert Hosmer Morse House (Lake County, Illinois)
Robert Lee Williams Public Library (Bryan County, Oklahoma)
Robert Nordhaus House (Bernalillo County, New Mexico)
Robert R. Coker House (Darlington County, South Carolina)
Robert Smith Mortuary (Vanderburgh County, Indiana)
Roberta School Campus (Bryan County, Oklahoma)
Roberts Pavilion (Horry County, South Carolina)
Roberts Vaux Junior High School (Philadelphia County, Pennsylvania)
Robeson County Agricultural Building (Robeson County, North Carolina)
Robeson, Paul, Home (New York County, New York)
Robinson Hall (Kidder County, North Dakota)
Robinson Hall--Louisiana Tech University (Lincoln Parish, Louisiana)
Robinson High School Auditorium--Gymnasium (Crawford County, Illinois)
Robinwood Aparments (Spokane County, Washington)
Rochambeau Branch--Providence Public Library (Providence County, Rhode Island)
Rochester Public Library (Olmsted County, Minnesota)
Rock Cafe (Lincoln County, Oklahoma)
Rock County Courthouse (Rock County, Nebraska)
Rock Creek Bridge (Pittsburg County, Oklahoma)
Rockaway Courthouse (Queens County, New York)
Rockdale County Courthouse (Rockdale County, Georgia)
Rockefeller Center (New York County, New York)
Rockwood Lodge Barn and Pigsty (Brown County, Wisconsin)
Rockwood Post Office (Roane County, Tennessee)
Rocky Ford Post Office (Otero County, Colorado)
Rocky Neck Pavilion (New London County, Connecticut)
Rocky Point CCC Properties (Benewah County, Idaho)
Rodgers Theater (Tehama County, California)
Roesch Building (Union County, Oregon)
Roff Armory (Pontotoc County, Oklahoma)
Rogers Administration Building (San Miguel County, New Mexico)
Rogers Dry Lake (Kern County, California)
Rogers Theater (Cleveland County, North Carolina)
Rogers-Post Site (North Slope Borough, Alaska)
Rogue River Bridge No. 01172 (Curry County, Oregon)
Concrete arch bridge over Rogue River on US 101 in Gold Beach
Rogue Theatre (Josephine County, Oregon)
Rolla Ranger Station Historic District (Phelps County, Missouri)
Roosevelt County Courthouse (Roosevelt County, New Mexico)
Roosevelt Hall (Grant County, Minnesota)
Roosevelt Hall (Spokane County, Washington)
Roosevelt Hospital (Middlesex County, New Jersey)
Roosevelt Park (Bernalillo County, New Mexico)
Roosevelt School (Polk County, Florida)
Roosevelt School (Aroostook County, Maine)
Roosevelt School (Sandoval County, New Mexico)
Roosevelt State Park (Scott County, Mississippi)
Root--Banks House (Jackson County, Oregon)
Roscoe Community Hall (Edmunds County, South Dakota)
Roscoe State Aid Bridge (Keith County, Nebraska)
Rosedale Apartments (Providence County, Rhode Island)
Roseland Theater (Accomack County, Virginia)
Rosenburg's Department Store (Sonoma County, California)
Rosenwald School (Pike County, Arkansas)
Roslyn Auditorium (Day County, South Dakota)
Roslyn Savings Bank Building (Nassau County, New York)
Round House (Barnstable County, Massachusetts)
Roundtop Filling Station (Pulaski County, Arkansas)
Route 66, TX 207 to I-40 (Carson County, Texas)
Roxie Theater (Los Angeles County, California)
Roxy Theater (Carroll County, Arkansas)
Roxy Theater (Lewis County, Washington)
Roxy Theater (Faribault County, Minnesota)
Roxy Theater (King County, Washington)
Roxy Theatre (Cavalier County, North Dakota)
Roy and Leola Gangware House (Multnomah County, Oregon)
Roy T. Herman's Garage and Service Station (McKinley County, New Mexico)
Royal Theater (Troup County, Georgia)
Royston Nave Memorial (Victoria County, Texas)
Rt 66 38 Span Pony Bridge (Caddo County, Oklahoma)
Rudolf Ericson House (Iron County, Michigan)
Ruffin Theater (Tipton County, Tennessee)
Ruge Hall (Leon County, Florida)
Ruleville Depot (Sunflower County, Mississippi)
Rundel Memorial Library (Monroe County, New York)
Rush County Line Bridge (Rush County, Kansas)
Three-span stone arch bridge over an unnamed creek, 11.0 mi. north and 0.7 mi. east of Otis
Russell and Pearl Soderling House (Boundary County, Idaho)
Russell Lodge No. 284 (Russell County, Kentucky)
Russell School (Flathead County, Montana)
Russell Theatre (Mason County, Kentucky)
Russellville Armory (Logan County, Kentucky)
Russellville Public Library (Pope County, Arkansas)
Russian Village Historic District (New Haven County, Connecticut)
Rustler Park Fire Guard Station (Cochise County, Arizona)
Ruston High School (Lincoln Parish, Louisiana)
Rutherford Health Department (Rutherford County, Tennessee)
Ryan, William J., Estate (Suffolk County, New York)
RyeMabee (Marion County, Tennessee)
S & S Sandwich Shop (Miami-Dade County, Florida)
S. B. Elliott State Park Day Use District (Clearfield County, Pennsylvania)
S. B. Elliott State Park Family Cabin District (Clearfield County, Pennsylvania)
S. H. Kress and Company Building (Jefferson County, Alabama)
S.H. Kress and Co. Building (Volusia County, Florida)
S.H. Kress Building (Sarasota County, Florida)
Saban Theatre (Los Angeles County, California)
Saco Drive-In Theatre (York County, Maine)
Sacramento Junior College Annex and Extensions (Sacramento County, California)
Sacred Heart Catholic Church (Taylor County, Texas)
Sacred Heart School (Bristol County, Massachusetts)
Saddle Creek Underpass (Douglas County, Nebraska)
Saddlehorn Comfort Station (Mesa County, Colorado)
Saint Anthony Hotel (Bexar County, Texas)
Saint Anthony's Church and Rectory (Pinal County, Arizona)
Saint Anthony's Hospital (Conway County, Arkansas)
Saint Frances of Rome School (Jefferson County, Kentucky)
Saint James Mutual Homes (Washington, District of Columbia)
Saint Joseph 1930 Hospital (Bernalillo County, New Mexico)
SAINTE GENEVIEVE (dredge) (Scott County, Iowa)
Salem Theater (Salem, Virginia)
Salerno Apartments (Multnomah County, Oregon)
Salisbury Fish Hatchery (Addison County, Vermont)
Salisbury Theater (St. Louis, Missouri)
Sallisaw High School (Sequoyah County, Oklahoma)
Salmon City Hall and Library (Lemhi County, Idaho)
Salt River Canyon Bridge (Gila County, Arizona)
Saluda Theatre (Saluda County, South Carolina)
Art-Deco Movie House in Saluda, SC
Sam and Marjorie Miller House (Hidalgo County, Texas)
Sam Cohodas Lodge (Marquette County, Michigan)
Samester Parkway Apartments (Baltimore, Maryland)
Samuel Bingham House (San Diego County, California)
Samuel Gompers Memorial (Washington, District of Columbia)
Samuel Morey Memorial Bridge, The (Grafton County, New Hampshire)
Samuel P. Taylor Service Station (Pulaski County, Arkansas)
Samuel Shalit House (Bernalillo County, New Mexico)
Samuel Wiener House (Caddo Parish, Louisiana)
San Carlos Hotel (Yuma County, Arizona)
San Clemente Historic District (Pima County, Arizona)
San Diego Civic Center (San Diego County, California)
San Francisco--Oakland Bay Bridge (San Francisco County, California)
San Juan River Bridge at Shiprock (San Juan County, New Mexico)
San Rafael Bridge (Emery County, Utah)
Suspension bridge over the San Rafael River at Buckhorn Wash
Sand Bar State Park (Chittenden County, Vermont)
Sandford Hall (Scotts Bluff County, Nebraska)
Sandpoint Community Hall (Bonner County, Idaho)
Sanford Avenue Historic District (St. Louis, Missouri)
Sanger, Margaret, Clinic (New York County, New York)
Sanpete County Courthouse (Sanpete County, Utah)
Santa Ana City Hall (Orange County, California)
Santa Claus Statue (Spencer County, Indiana)
Concrete statue in Santa Claus, IN
Santa Fe Depot (Oklahoma County, Oklahoma)
Santa Fe Hospital (Shawnee County, Kansas)
Santa Fe River Park Channel (Santa Fe County, New Mexico)
Santa Maria Mission (Cibola County, New Mexico)
Santa Rita Courts (Travis County, Texas)
Santaquin Junior High School (Utah County, Utah)
Sapulpa Post Office (Creek County, Oklahoma)
Sarbanes Cottage (Franklin County, New York)
Savanna--Sabula Bridge (Jackson County, Iowa)
Cantilevered through truss bridge over the Mississippi River on US 52/IL 64/IA 64 at Savanna
Saverton School (Ralls County, Missouri)
Saxman Totem Park (Ketchikan Gateway Borough, Alaska)
Sayre Champlin Service Station (Beckham County, Oklahoma)
Sayre Post Office (Beckham County, Oklahoma)
Sayre Underpass (Beckham County, Oklahoma)
Scalplock Mountain Fire Lookout (Flathead County, Montana)
Schaller Memorial Building (Wood County, Ohio)
Schenectady Armory (Schenectady County, New York)
Schenectady City Hall and Post Office (Schenectady County, New York)
Schiller Elementary School (Allegheny County, Pennsylvania)
Schine's Holland Theatre (Logan County, Ohio)
Dutch styled, atmospheric theater, closed as a movie theater but reopened as a concert and theatrical venue
Schines Auburn Theatre (Cayuga County, New York)
Schmitz Park Bridge (King County, Washington)
Scholes Hall (Bernalillo County, New Mexico)
School Building Number 2 (Santa Fe County, New Mexico)
Scipio Town Hall (Millard County, Utah)
Scott Bond Family Plot (St. Francis County, Arkansas)
Scott County Courthouse (Scott County, Arkansas)
Scott Stadium (Albemarle County, Virginia)
Scout Lodge (Lewis County, Washington)
Sea Cliff Firehouse (Nassau County, New York)
Seaboard Air Line Railway Depot (Kershaw County, South Carolina)
Railroad station on CSX track