This article lists the oldest extant buildings in
Iowa
Iowa () is a state in the Midwestern region of the United States, bordered by the Mississippi River to the east and the Missouri River and Big Sioux River to the west. It is bordered by six states: Wisconsin to the northeast, Illinois to the ...
, including extant buildings and structures constructed during pre-statehood period of Iowa history. Only buildings built prior to 1860 are suitable for inclusion on this list, or the building must be the oldest of its type.
In order to qualify for the list, a
structure
A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Material structures include man-made objects such as buildings and machines and natural objects such as ...
must:
* be a recognizable building (defined as any human-made structure used or intended for supporting or sheltering any use or continuous
occupancy
Within the context of building construction and building codes, "occupancy" refers to the use, or intended use, of a building, or portion of a building, for the shelter or support of persons, animals or property. A closely related meaning is th ...
);
* incorporate features of building work from the claimed date to at least in height and/or be a
listed building
In the United Kingdom, a listed building or listed structure is one that has been placed on one of the four statutory lists maintained by Historic England in England, Historic Environment Scotland in Scotland, in Wales, and the Northern Irel ...
.
This consciously excludes ruins of limited height, roads and statues. Bridges may be included if they otherwise fulfill the above criteria. Dates for many of the oldest structures have been arrived at by
radiocarbon dating
Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon.
The method was dev ...
or
dendrochronology
Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed. As well as dating them, this can give data for dendroclimatology, the study of climate and atmos ...
and should be considered approximate. If the exact year of initial construction is estimated, it will be shown as a range of dates.
List of oldest buildings
See also
*
National Register of Historic Places listings in Iowa
National may refer to:
Common uses
* Nation or country
** Nationality – a ''national'' is a person who is subject to a nation, regardless of whether the person has full rights as a citizen
Places in the United States
* National, Maryland, c ...
*
History of Iowa
Native Americans in the United States resided in what is now Iowa for thousands of years. The written history of Iowa begins with the proto-historic accounts of Native Americans by explorers such as Marquette and Joliet in the 1680s. Until the ea ...
*
Oldest buildings in the United States
This article lists the oldest buildings in the United States and its territories. The list includes sites in current states and territories which were not part of the original Thirteen Colonies when the United States of America was founded in 1776 ...
References
External links
{{Iowa
Iowa
Iowa () is a state in the Midwestern region of the United States, bordered by the Mississippi River to the east and the Missouri River and Big Sioux River to the west. It is bordered by six states: Wisconsin to the northeast, Illinois to the ...
Architecture in Iowa
Oldest