This study analyzes the voting outcomes of Provincial Assembly elections among 360 Taiwanese townships. The percentage of votes for Dangwai (Non-Nationalist) candidates were calculated. The extent of political pluralism is then related to the ecological characteristics. The analytical purpose is to produce a predictive model that can explain the emergence of political pluralism. The process of political pluralism is characterized by four types: Nonvisible, Emerging, Developing, and Mature. The step-wise discriminant analytical technique is used. The results reveal that political pluralism has little correlation with demographic variations among the townships. The most distinctive and significant predictive variable appears to be the degree of industrialization.