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Iowa General Assembly
Coat of arms or logo
Amy Sinclair (R)
since January 9, 2023
Senate Majority Leader
Jack Whitver (R)
since March 13, 2018
Pat Grassley (R)
since January 13, 2020
House Majority Leader
Matt Windschitl (R)
since January 13, 2020
Senate political groups
  •   Republican (34)
  •   Democratic (16)
House of Representatives political groups
Senate last election
November 8, 2022
(25 seats)
House of Representatives last election
November 8, 2022
Senate next election
November 5, 2024
(25 seats)
House of Representatives next election
November 5, 2024
Meeting place
Iowa State Capitol, Des Moines

The Iowa General Assembly is the legislative branch of the state government of Iowa. Like the federal United States Congress, the General Assembly is a bicameral body, composed of the upper house Iowa Senate and the lower Iowa House of Representatives respectively. The Senate consists of four year terms and the House consists of two year terms. The General Assembly convenes within the Iowa State Capitol in Des Moines.


The Iowa General Assembly consists of 50 senators and 100 representatives. Each senator represents about 60,927 people and each representative about 30,464 people as of the 2010 United States Census.[1] The last redistricting was enacted on April 19, 2011[2] for the 2012 elections 85th General Assembly. The assembly convenes annually on the second Monday in January.[3]

Leaders in the Senate are President Jake Chapman (R), and President Pro Tempore Brad Zaun (R). Partisan Senate leadership includes Majority Leader Jack Whitver (R), and Minority Leader Zach Wahls (D). In the House, the Speaker is Pat Grassley (R), and the Speaker Pro Tempore John Wills (R). Partisan House leadership includes Majority Leader Matt Windschitl (R), and Minority Leader Todd Prichard (D).

Composition of the 90th General Assembly of Iowa (2023–2024)

Affiliation (Senate) Members
  Republican Party 34
  Democratic Party 16
  Independent 0
  Vacant 0
Affiliation (House) Members
  Republican Party 64
  Democratic Party 36
  Independent 0
  Vacant 0

See also


  1. ^ "First Redistricting Plan" (PDF). Iowa Legislative Services Agency. March 31, 2011. p. 3. Retrieved November 17, 2012.
  2. ^ "Iowa Redistricting - 2011". Iowa General Assembly. Archived from the original on October 29, 2012. Retrieved November 17, 2012.
  3. ^ "Legislative Guide to the Iowa General Assembly" (PDF). Legal Services Division, Iowa Legislative Services Agency. December 2006. pp. 20–21. Archived from the original (PDF) on June 12, 2009. Retrieved November 17, 2012.