District

18th and Vine Historic District (Jackson County, Missouri)
Aaronsburg Historic District (Centre County, Pennsylvania)
Abbeville Commercial Historic District (Vermilion Parish, Louisiana)
Abbeville Historic District (Abbeville County, South Carolina)
Historic business and residential district in Abbeville, SC
Abbeville Residential Historic District (Vermilion Parish, Louisiana)
Abbott Tract Historic District (St. Johns County, Florida)
Abel Bennett Tract Historic District (Broome County, New York)
Abenicio Salazar Historic District (Sandoval County, New Mexico)
Aberdeen Commercial Historic District (Brown County, South Dakota)
Aberdeen Downtown Historic District (Monroe County, Mississippi)
Aberdeen Highlands Historic District (Brown County, South Dakota)
Aberdeen Historic District (Brown County, South Dakota)
Aberdeen Historic District (Moore County, North Carolina)
Abilene City Park Historic District (Dickinson County, Kansas)
Abingdon Historic District (Washington County, Virginia)
Abita Springs Historic District (St. Tammany Parish, Louisiana)
Academy Grove Historic District (Somerset County, Maryland)
Academy Hill Historic District (Iredell County, North Carolina)
Academy Hill Historic District (Essex County, Massachusetts)
Academy Hill Historic District (Monroe County, Pennsylvania)
Academy Hill Historic District (Westmoreland County, Pennsylvania)
Academy Historic District (Hampden County, Massachusetts)
Academy Street Historic District (Dutchess County, New York)
Accomac Historic District (Accomack County, Virginia)
Acton Centre Historic District (Middlesex County, Massachusetts)
Acushnet Heights Historic District (Bristol County, Massachusetts)
Acworth Downtown Historic District (Cobb County, Georgia)
Adair Gardens Historic District (Knox County, Tennessee)
Adair Park Historic District (Fulton County, Georgia)
Adairsville Historic District (Bartow County, Georgia)
Adam, J.N.--AM&A Historic District (Erie County, New York)
Adams Avenue Historic District (Shelby County, Tennessee)
Adams Commercial Historic District (Jefferson County, New York)
Adams National Historic Site (Norfolk County, Massachusetts)
Adams Street Historic District (Williamson County, Tennessee)
Adel Public Square Historic District (Dallas County, Iowa)
Brick paved streets and delightful old architecture surrounding the courthouse
Advance Mills Historic District (Albemarle County, Virginia)
Advent Historic District (Calhoun County, Michigan)
Agawam Center Historic District (Hampden County, Massachusetts)
Agnews Insane Asylum (Santa Clara County, California)
Ahole Holua Complex (Hawaii County, Hawaii)
Ahoskie Downtown Historic District (Hertford County, North Carolina)
Ahoskie Historic District (Hertford County, North Carolina)
Aiken Mile Track (Aiken County, South Carolina)
Aiken Training Track (Aiken County, South Carolina)
Aiken Winter Colony Historic District I (Aiken County, South Carolina)
Aiken Winter Colony Historic District II (Aiken County, South Carolina)
Aiken Winter Colony Historic District III (Aiken County, South Carolina)
Aiken's Tavern Historic District (New Castle County, Delaware)
Airview Historic District (Frederick County, Maryland)
Ajo Townsite Historic District (Pima County, Arizona)
Alabama State University Historic District (Montgomery County, Alabama)
Alabaster Historic District (Iosco County, Michigan)
Alamance Mill Village Historic District (Alamance County, North Carolina)
Alameda-Depot Historic District (Dona Ana County, New Mexico)
Alamo Plaza Historic District (Bexar County, Texas)
Albany Avenue Historic District (Rensselaer County, New York)
Albany Railroad Depot Historic District (Dougherty County, Georgia)
Albany Street Historic District (Madison County, New York)
Albert Lea Commercial Historic District (Freeborn County, Minnesota)
Albion Historic District (Providence County, Rhode Island)
Alcorn State University Historic District (Claiborne County, Mississippi)
Alcove Historic District (Albany County, New York)
Alderson Historic District (Unspecified county, West Virginia)
Alderson Historic District (Monroe County, West Virginia)
Historic District with Property in both Monroe & Greenbrier Counties
Aldie Mill Historic District (Loudoun County, Virginia)
Aldo Leopold Neighborhood Historic District (Bernalillo County, New Mexico)
Alexander City Commercial Historic District (Tallapoosa County, Alabama)
Alexander Smith Carpet Mills Historic District (Westchester County, New York)
Alexandria Cemeteries Historic District (De Kalb County, Tennessee)
Alexandria Garden District (Rapides Parish, Louisiana)
Alexandria Historic District (Alexandria, Virginia)
Alexandria Residential Historic District (Douglas County, Minnesota)
Alfred Drowne Road Historic District (Bristol County, Rhode Island)
Alfred Historic District (York County, Maine)
Alfred Shaker Historic District (York County, Maine)
Alfred Village Historic District (Allegany County, New York)
Algoma Boulevard Historic District (Winnebago County, Wisconsin)
Alice Creek Historic District (Lewis and Clark County, Montana)
Alkali Flat Central Historic District (Sacramento County, California)
Alkali Flat North Historic District (Sacramento County, California)
Alkali Flat West Historic District (Sacramento County, California)
All Saints Historic District (Minnehaha County, South Dakota)
Allaire Village (Monmouth County, New Jersey)
Allardt Historic District (Fentress County, Tennessee)
Allegheny West Historic District (Allegheny County, Pennsylvania)
Allen Street Historic District (Providence County, Rhode Island)
Allen University Historic District (Richland County, South Carolina)
Allendale Plantation Historic District (West Baton Rouge Parish, Louisiana)
Allensville Historic District (Todd County, Kentucky)
Allensworth Historic District (Tulare County, California)
Allentown Historic District (Erie County, New York)
Allentown Historic District (Monmouth County, New Jersey)
Alliance Commercial Historic District (Box Butte County, Nebraska)
Allison Woods (Iredell County, North Carolina)
Alma Historic District (Buffalo County, Wisconsin)
Alpha Terrace Historic District (Allegheny County, Pennsylvania)
Alphabet Historic District (Multnomah County, Oregon)
Alpine Institute (Overton County, Tennessee)
Alpine Tunnel Historic District (Unspecified county, Colorado)
Abandoned tunnel under the Continental Divide on the Denver, South Park & Pacific Railroad, southwest of St. Elmo
Alta Vista Terrace Historic District (Cook County, Illinois)
Altamont Historic District (Albany County, New York)
Altavista Downtown Historic District (Campbell County, Virginia)
Altawood Historic District (Jefferson County, Kentucky)
Alumni--Latham--Mooreland Historic District (Christian County, Kentucky)
Alvarado Historic District (Maricopa County, Arizona)
Alvarado Terrace Historic District (Los Angeles County, California)
Alves Historic District (Henderson County, Kentucky)
Alviso Historic District (Santa Clara County, California)
Amana Villages (Iowa County, Iowa)
Amasa Historic Business District (Iron County, Michigan)
Ambassador Hotel Historic District (Jackson County, Missouri)
Ambler Heights Historic District (Cuyahoga County, Ohio)
Amelia Earhart Historic District (Atchison County, Kansas)
Amelia Street Historic District (Orangeburg County, South Carolina)
American Beach Historic District (Nassau County, Florida)
American Firebrick Company (Spokane County, Washington)
American System Built Homes-Burnham Street District (Milwaukee County, Wisconsin)
Prototype structures of Frank Lloyd Wright's concept of American System Homes.
American Tobacco Company Manufacturing Plant (Durham County, North Carolina)
American Waltham Watch Company Historic District (Middlesex County, Massachusetts)
American Woolen Mill Housing District (Essex County, Massachusetts)
Americus Historic District (Sumter County, Georgia)
Ames Hill/Crescent Hill District (Hampden County, Massachusetts)
Amherst Avenue Historic District (Essex County, New York)
Amherst Central Business District (Hampshire County, Massachusetts)
Amherst Village Historic District (Hillsborough County, New Hampshire)
AMK Ranch (Teton County, Wyoming)
Amsterdam Historic District (Hunterdon County, New Jersey)
Anaconda Commercial Historic District (Deer Lodge County, Montana)
Anaconda Saddle Club (Deer Lodge County, Montana)
Anacostia Historic District (Washington, District of Columbia)
Anadarko Downtown Historic District (Caddo County, Oklahoma)
Anchorage Historic District (Jefferson County, Kentucky)
Andalusia Commercial Historic District (Covington County, Alabama)
Anderson College Historic District (Anderson County, South Carolina)
Anderson Dock Historic District (Door County, Wisconsin)
Anderson Downtown Historic District (Madison County, Indiana)
Anderson Downtown Historic District (Anderson County, South Carolina)
Historic commercial district in Anderson, SC
Anderson Historic District (Anderson County, South Carolina)
Historic residential district in Anderson, SC
Anderson Historic District (Grimes County, Texas)
Anderson Place Historic District (Jefferson County, Alabama)
Andersonville National Historic Site (Unspecified county, Georgia)
Andes Historic District (Delaware County, New York)
Andover Center Historic District (Tolland County, Connecticut)
Andover Street Historic District (Middlesex County, Massachusetts)
Andover Village Industrial District (Essex County, Massachusetts)
Andrew Dickhaut Cottages Historic District (Providence County, Rhode Island)
Andrew Johnson National Historic Site (Greene County, Tennessee)
Andrew Warren Historic District (Marathon County, Wisconsin)
Andrews Bridge Historic District (Lancaster County, Pennsylvania)
Angel's Hill Historic District (Chisago County, Minnesota)
Angelica Park Circle Historic District (Allegany County, New York)
Angelo Heights Historic District (Tom Green County, Texas)
Angola Commercial Historic District (Steuben County, Indiana)
Downtown Angola
Anheuser-Busch Brewery (St. Louis, Missouri)
Aniakchak Bay Historic Landscape District (Dillingham Census Area, Alaska)
Ann Street Historic District (Hartford County, Connecticut)
Annandale Historic District (Hunterdon County, New Jersey)
Annapolis Park Historic District (Wayne County, Michigan)
Annesdale Park Historic District (Shelby County, Tennessee)
Annesdale-Snowden Historic District (Shelby County, Tennessee)
Annville Historic District (Lebanon County, Pennsylvania)
Ansley Park Historic District (Fulton County, Georgia)
Apalachicola Historic District (Franklin County, Florida)
Apex Historic District (Wake County, North Carolina)
Appleton City Park Historic District (Outagamie County, Wisconsin)