The 58th Legislative Assembly consisted of a Senate with 47 senators and a House of Representatives with 94 representatives. The 58th Legislative Assembly organized December 2-4, 2002, and convened in regular session from Tuesday, January 7, 2003.

Generally, the senators from even-numbered districts were elected to four-year terms at the November 2000 general election and the senators from odd-numbered districts were elected to four-year terms at the 2002 general election.

Two representatives are elected from each of 47 senatorial districts. Generally, the representatives from even-numbered districts were elected to four-year terms at the November 2000 general election and the representatives from odd-numbered districts were elected to four-year terms at the 2002 general election.