The IGA 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[update]. The last redistricting was enacted on April 19, 2011 for the 2012 elections 85th General Assembly. The IGA convenes annually on the second Monday in January. 
As of January 2013[update], the Senate is controlled by Democrats, and the House of Representatives and the Governor's office are both controlled by Republicans.
Prior to the 2006 elections, Iowa had one of the most evenly divided state legislatures in the country, with a 25-25 split in the Senate and the House composed of 51 Republicans and 49 Democrats.