This research focuses on assessing the impact of participation on voting in southern state legislative elections in the 1990s. While turnout is the subject of much study as a dependent variable (Hill and Leighley 1999; Bullock, Gaddie, and Kuzenski 1995; Weber 2000, 233-246; Gaddie and Bullock 1997; Davidson 1994; Hogan 1999), its relationship to southern state legislative outcomes has not been extensively studied. I find that higher levels of turnout lead to increased votes for the Republicans. While this was the case only in South Carolina in the early 1990s, by the late 1990s, this pattern was consistent across five of the ten states under study. These findings suggest that the relationship between participation and voting in state legislative elections in the South may be becoming similar to congressional elections (Campbell 1996). This study also focuses on the influences of constituency diversity on voting outcomes at the state house level. In recent years, most of the discussion regarding the influences of constituency characteristics has been centered around assessing the impact of creating numerous majority-minority districts during the 1990s redistricting (see Lublin and Voss 2000). This study moves beyond this debate to assess the influence of constituency diversity on aggregate voting outcomes, beyond majority-minority districts. Using a measure of constituency diversity (based on the work of William Koetzle (1998)), which measures the “political diversity” of districts, the findings support the contention that constituency diversity has a significant influence in structuring aggregate voting outcomes.