Idaho's 33rd legislative district is one of 35 districts of the Idaho Legislature. It contains most of the city of Idaho Falls and is one of three districts in Bonneville County
It is currently represented by Senator Dave Lent, Republican of Idaho Falls, Representative Barbara Ehardt, Republican of Idaho Falls, and Representative Marco Erickson, Republican of Idaho Falls.
From 1992 to 2002, District 33 consisted of a portion of Bannock County.
From 2002 to 2012, District 33 consisted of a portion of Bonneville County.
District 33 currently consists of a portion of Bonneville County.