This study examined extended influences of peer helping courses on graduates' self-reported experiences of interpersonal relationships, communication skills, and ongoing engagement with the training. The 109 participants included 49 college graduates who completed a peer counseling theory course, 47 graduated psychology concentrators who took a peer practicum that included both theory and supervised practice, and a comparison group of 13 graduated psychology concentrators who took neither peer counseling course. Participants in both peer training courses reported continuing effects on their interpersonal relationships, communication skills, and engagement with the training, with greatest effects reported by the psychology concentrators in both peer training courses. The small comparison group provided additional perspective on these findings. Suggestions for future research are offered, including potential benefits of more widespread utilization of college peer counselor training and the need for further follow-up studies on those who have been trained as peer counselors.