Although youth activism often is sparked by unexpected events, the seeds of activism are planted in learning environments that cultivate community, critical reflection, and sociopolitical action. Recent studies suggest promising outcomes from transformative student voice (TSV) programming, but more work is needed that assesses the impact of TSV participation for youth of color. We surveyed 294 students from 12 public high schools and found that students in TSV activities reported more critical reflection, sociopolitical efficacy, and participation in sociopolitical action than their non-TSV peers. Additionally, using regression analysis, we found that years of involvement in TSV activities predicted participation in sociopolitical action. These findings are significant, as they indicate how multiyear engagement in TSV activities can facilitate sociopolitical action in the youth of color.