The Illinois General Assembly will have at least 20 new members in 2013.

The figure totals more than two dozen when you include lawmakers who retired before the 2010 elections or resigned to run for other offices. 10 of the 59 Illinois Senate members are retiring, five Democrats and five Republicans. 10 of the 118 Illinois House members are retiring, seven Democrats and three Republicans.

Political experts say the turnover isn't surprising because it's typical to see retirements when districts are redrawn following the U.S. Census. House Minority Leader Tom Cross has the fewest number of retiring caucus members. He says that's because the caucus has many younger members.