This list of tallest buildings in Iowa ranks skyscrapers and monuments in the US state of Iowa

Iowa

Iowa is a state located in the Midwestern United States, an area often referred to as the "American Heartland". It derives its name from the Ioway people, one of the many American Indian tribes that occupied the state at the time of European exploration. Iowa was a part of the French colony of New...

 by height.

Tallest buildings

This list ranks the 12 tallest existing buildings in Iowa, based on standard height measurement. All are in Des Moines

Des Moines, Iowa

Des Moines is the capital and the most populous city in the US state of Iowa. It is also the county seat of Polk County. A small portion of the city extends into Warren County. It was incorporated on September 22, 1851, as Fort Des Moines which was shortened to "Des Moines" in 1857...

, except the Alliant Tower, which is in Cedar Rapids

Cedar Rapids, Iowa

Cedar Rapids is the second largest city in Iowa and is the county seat of Linn County. The city lies on both banks of the Cedar River, north of Iowa City and east of Des Moines, the state's capital and largest city...

.

Picture	Rank	Name	Stories	Height	Year Completed	Primary Purpose	Source
	1	801 Grand 801 Grand 801 Grand, also known as The Principal Building, is a skyscraper located in Des Moines, Iowa. It is named after its street address, being located along Grand Avenue in the downtown area of the city between 8th & 9th Street . Completed in 1991 and standing at 630 ft it is currently the...  (previously The Principal Building)	45	630 ft (192 m)	1991	Office
	2	Ruan Center Ruan Center The Ruan Center is a high rise located in Des Moines, Iowa. It was built by Ruan Transportation and is located along Grand Avenue in the downtown area of the city. Completed in 1975 and standing at 460 ft , it was the tallest building in Iowa until the completion of 801 Grand in 1991 and is...	36	460 ft (140 m)	1975	Office
	3	Des Moines Marriott Hotel	33	365 ft (111 m)	1981	Hotel
	4	Financial Center Financial Center Financial Center is a high-rise building located in the downtown area of Des Moines, Iowa. Completed in 1973 and standing at 345 ft , it was the tallest building in the city and state until the completion of the Ruan Center in 1975, and is currently the fourth tallest.The building consists mainly...	25	345 ft (105 m)	1973	Office
	5	Plaza Building	25	340 ft (104 m)	1985	Residential
	6	HUB Tower	25	325 ft (99 m)	1986	Office
	7	EMC Insurance Building	19	325 ft (99 m)	1997	Office
	8	Equitable Building Equitable Building (Des Moines) The Equitable Building is a high-rise located in Des Moines, Iowa. It is named after the insurance company Equitable of Iowa, which originally owned the building, and is located along Locust Street in the downtown area of the city. The 19-story Equitable Building, at 604 Locust St...	19	318 ft (97 m)	1924	Residential
	9	Alliant Tower (Cedar Rapids)	21	285 ft (86.9 m)	1972	Office
	10	Bank of America Building	16	280 ft (85 m)	1966	Office
	11	Iowa State Capitol Iowa State Capitol The Iowa State Capitol is located in Iowa's capital city, Des Moines, and houses the Iowa Senate, Iowa House of Representatives, the Office of the Governor, and the Offices of the Attorney General, Auditor, Treasurer, and Secretary of State...	4	275 ft (83.8 m)	1884	Government
	12	Qwest Complex	15	273 ft (83 m)	–	Office

Timeline of tallest buildings

This list shows which buildings have been the tallest in Iowa since 1884.

Years as Tallest	Name	Stories	Height	Source
1884–1924	Iowa State Capitol Iowa State Capitol The Iowa State Capitol is located in Iowa's capital city, Des Moines, and houses the Iowa Senate, Iowa House of Representatives, the Office of the Governor, and the Offices of the Attorney General, Auditor, Treasurer, and Secretary of State...	n/a	275 ft (83.8 m)
1924–1973	Equitable Building	19	318 ft (97 m)
1973–1975	Financial Center	25	345 ft (105 m)
1975–1991	Ruan Center	36	460 ft (140 m)
1991–Present	801 Grand	45	630 ft (192 m)

Tall buildings prior to 1884

There does not seem to have been any effort to document the tallest building in Iowa prior to the construction of the State Capitol in 1884. This list shows buildings which may have been the tallest in Iowa prior to 1884, excluding church steeples.

Years as Tallest	Name	Stories	Height	Source
1840–1856	Old Capitol Iowa Old Capitol Building The Iowa Old Capitol Building is located in Iowa City, Iowa, United States. It was once the main government building for the state of Iowa, and it now stands as the most prominent landmark at the center of the University of Iowa's campus. It is a U.S... , Iowa City	n/a	ca. 114 ft (34.7 m)
1856–1884	Shot Tower Shot Tower (Dubuque) The Shot Tower located in Dubuque, Iowa is one of the last remaining shot towers in the United States. It is listed on the National Register of Historic Places and remains a recognized symbol of the city. At its location near the Mississippi River, the Tower can be seen from the riverwalk and is... , Dubuque	10	120 ft 5 in (36.7 m)

Other early tall building include:

• Mount Ida Female College, Davenport
  Davenport, Iowa
  Davenport is a city located along the Mississippi River in Scott County, Iowa, United States. Davenport is the county seat of and largest city in Scott County. Davenport was founded on May 14, 1836 by Antoine LeClaire and was named for his friend, George Davenport, a colonel during the Black Hawk...
  
  , 1856. First four-story dwelling, later had a high dome placed on top, may have rivaled Old Capitol in height.
• Fort Madison, 1808, probably the first two-story buildings in what will become Iowa.