The Oldest Building in Each U.S. State

Map by Malcolm Tunnell

The Reddit user Malxredleader put together this excellent map of the oldest building in each US state. Below is a table that outlines all their dates of construction. You can read the full discussion on reddit here.

List of Oldest Buildings in Each US State

U.S. State/TerritoryBuildingYear BuiltCentury Built
AlabamaJoel Eddins House180819th
AlaskaKodiak History Museum181019th
ArizonaAncestral Puebloan Dwellingsc. 750 CE8th
ArkansasWoodruff Print Shop182419th
CaliforniaMission San Juan Capistrano177618th
ColoradoAncestral Puebloan Dwellingsc. 750 CE8th
ConnecticutHenry Whitfield House164017th
DelawareRyves Holt House166517th
District of ColumbiaOld Stone House176518th
FloridaCastillo de San Marcos167217th
GeorgiaOcmulgee Earth Lodge101511th
HawaiiMalae Heiau120011th
IdahoCataldo Mission185319th
IllinoisOld Cahokia Courthouse174018th
IowaLouis Arriandeaux Log House183319th
KansasEl Quartelejo Ruins165017th
KentuckyHistoric Locust Grove179018th
LouisianaOld Ursuline Convent174818th
MaineWilliam Whipple House166017th
MarylandOld Trinity Church167517th
MassachusettsFairbanks House164117th
MichiganOfficer’s Stone Quarters178018th
MinnesotaFort Snelling Round Tower182019th
MississippiLaPointe-Krebs House175718th
MissouriLouis Bolduc House179218th
MontanaOld Fort Benton Blockhouse184419th
NebraskaLog Cabin183519th
NevadaOld Las Vegas Mormon Fort185519th
New HampshireStrawbery Banke160017th
New JerseyMortonson-Van Leer Log Cabin165417th
New MexicoAncestral Puebloan Dwellingsc. 750 CE8th
New YorkGardiners Island Shed163917th
North CarolinaLane House171818th
North DakotaKittson Trading Post184319th
OhioRufus Putnam House178818th
OklahomaFort Gibson Barracks184019th
OregonMolalla Log House179918th
PennsylvaniaLower Swedish Cabin165017th
Puerto RicoCathedral of San Juan Bautista152116th
Rhode IslandWhite Horse Tavern167317th
South CarolinaMiddleburg Plantation169417th
South DakotaFort Sisseton186419th
TennesseeChristopher Taylor House177818th
TexasAlamo Mission Long Barracks172418th
UtahAncestral Puebloan Dwellingsc. 750 CE8th
VermontWilliam Henry House176918th
VirginiaJamestown Church164717th
WashingtonFort Nisqually Granary184319th
West VirginiaRehoboth Church178518th
WisconsinTank Cottage177618th
WyomingFort Laramie ‘Old Bedlam’ Building184919th

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