To enhance understanding of factors that might improve STEM career participation, we assessed students' self-perceptions of competency and interest in science/math, engagement in STEM activities outside of school, and knowledge of STEM career requirements. We show that the primary positive influencer directing students to a STEM career is high engagement in STEM activities. Our data also indicate that Grade 7 students do not grasp the importance of science/math requirements for future STEM careers. Further research is required to more fully explore the correlations between education and community influencers on the likelihood of choosing a STEM career identified in this study.