Since

Iowa Iowa () is a U.S. state, state in the Midwestern United States, 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: Wiscon ...

became a U.S. state in 1846, it has sent congressional delegations to the

United States Senate The United States Senate is the upper chamber of the United States Congress, with the House of Representatives being the lower chamber. Together they compose the national bicameral legislature of the United States. The composition and po ...

and

United States House of Representatives The United States House of Representatives, often referred to as the House of Representatives, the U.S. House, or simply the House, is the lower chamber of the United States Congress, with the Senate being the upper chamber. Together they ...

. Each state elects two senators to serve for six years, and members of the House to two-year terms. Before becoming a state, the

Iowa Territory The Territory of Iowa was an organized incorporated territory of the United States that existed from July 4, 1838, until December 28, 1846, when the southeastern portion of the territory was admitted to the Union as the state of Iowa. The remain ...

elected a non-voting delegate at-large to Congress from 1838 to 1846. These are tables of congressional delegations from Iowa to the United States Senate and the United States House of Representatives.

Current delegation

Iowa's current congressional delegation in the consists of its two senators, both of whom are Republicans, and its four representatives: three Republicans and one Democrat. The current dean of the Iowa delegation is Senator and

President pro tempore emeritus of the United States Senate The president pro tempore of the United States Senate (often shortened to president pro tem) is the second-highest-ranking official of the United States Senate, after the vice president. According to Article One, Section Three of the United S ...

Chuck Grassley Charles Ernest Grassley (born September 17, 1933) is an American politician serving as the president pro tempore emeritus of the United States Senate, and the senior United States senator from Iowa, having held the seat since 1981. In 2022, h ...

, having served in the Senate since 1981 and in Congress since 1975.

United States Senate

United States House of Representatives

1838–1846: 1 non-voting delegate

On July 4, 1838, the

was organized. Most of the area comprising the territory was originally part of the

Louisiana Purchase The Louisiana Purchase (french: Vente de la Louisiane, translation=Sale of Louisiana) was the acquisition of the territory of Louisiana by the United States from the French First Republic in 1803. In return for fifteen million dollars, or ap ...

and was a part of the

Missouri Territory The Territory of Missouri was an organized incorporated territory of the United States that existed from June 4, 1812, until August 10, 1821. In 1819, the Territory of Arkansas was created from a portion of its southern area. In 1821, a southea ...

. When

Missouri Missouri is a state in the Midwestern region of the United States. Ranking 21st in land area, it is bordered by eight states (tied for the most with Tennessee): Iowa to the north, Illinois, Kentucky and Tennessee to the east, Arkansas t ...

became a state in 1821, this area (along with

the Dakotas The Dakotas is a collective term for the U.S. states of North Dakota and South Dakota. It has been used historically to describe the Dakota Territory, and is still used for the collective heritage, culture, geography, fauna, sociology, econo ...

) effectively became unorganized territory. The area was closed to white settlers until the 1830s, after the

Black Hawk War The Black Hawk War was a conflict between the United States and Native Americans led by Black Hawk, a Sauk leader. The war erupted after Black Hawk and a group of Sauks, Meskwakis (Fox), and Kickapoos, known as the "British Band", cross ...

ended. It was attached to the

Michigan Territory The Territory of Michigan was an organized incorporated territory of the United States that existed from June 30, 1805, until January 26, 1837, when the final extent of the territory was admitted to the Union as the State of Michigan. Detroit ...

on June 28, 1834, and was split off with the

Wisconsin Territory The Territory of Wisconsin was an organized incorporated territory of the United States that existed from July 3, 1836, until May 29, 1848, when an eastern portion of the territory was admitted to the Union as the State of Wisconsin. Belmont was ...

in 1836 when

Michigan Michigan () is a state in the Great Lakes region of the upper Midwestern United States. With a population of nearly 10.12 million and an area of nearly , Michigan is the 10th-largest state by population, the 11th-largest by area, and t ...

became a state. The Iowa Territory was the "Iowa District" of western

– the region west of the

Mississippi River The Mississippi River is the List of longest rivers of the United States (by main stem), second-longest river and chief river of the second-largest Drainage system (geomorphology), drainage system in North America, second only to the Hudson B ...

. The original boundaries of the territory, as established in 1838, included part of

Minnesota Minnesota () is a state in the upper midwestern region of the United States. It is the 12th largest U.S. state in area and the 22nd most populous, with over 5.75 million residents. Minnesota is home to western prairies, now given over t ...

and parts of

, covering about of land. Starting on September 10, 1838,

sent a non-voting delegate to the House.

1846–1863: 2 seats

Following statehood on December 28, 1846, Iowa had two seats in the House. It elected both seats statewide at-large on a general ticket, until 1847, when it redistricted into two districts.

1863–1873: 6 seats

Following the 1860 census, Iowa was apportioned 6 seats.

1873–1883: 9 seats

Following the

1870 census The United States census of 1870 was the ninth United States census. It was conducted by the Census Bureau from June 1, 1870, to August 23, 1871. The 1870 census was the first census to provide detailed information on the African-American popu ...

, Iowa was apportioned 9 seats.

1883–1933: 11 seats

Following the

1880 census The United States census of 1880 conducted by the Census Bureau during June 1880 was the tenth United States census.1930 census The United States census of 1930, conducted by the Census Bureau one month from April 1, 1930, determined the resident population of the United States to be 122,775,046, an increase of 13.7 percent over the 106,021,537 persons enumerated during ...

, Iowa was apportioned 9 seats.

1943–1963: 8 seats

Following the

1940 census The United States census of 1940, conducted by the Census Bureau, determined the resident population of the United States to be 132,164,569, an increase of 7.3 percent over the 1930 population of 122,775,046 people. The census date of record w ...

, Iowa was apportioned 8 seats.

1963–1973: 7 seats

Following the 1960 census, Iowa was apportioned 7 seats.

1973–1993: 6 seats

Following the 1970 census, Iowa was apportioned 6 seats.

1993–2013: 5 seats

Following the 1990 census, Iowa was apportioned 5 seats.

2013–present: 4 seats

Following the 2010 census, Iowa was apportioned 4 seats.

Key

References

{{U.S. congressional delegations

Politics of Iowa Congressional delegations

Current delegation

United States Senate

United States House of Representatives

1838–1846: 1 non-voting delegate

1846–1863: 2 seats

1863–1873: 6 seats

1873–1883: 9 seats

1883–1933: 11 seats

1943–1963: 8 seats

1963–1973: 7 seats

1973–1993: 6 seats

1993–2013: 5 seats

2013–present: 4 seats

Key

See also

References