This study addressed community service participation and citizenship among undergraduate students, based upon participation in community service prior to college. In particular, this study investigated three service groups: mandatory volunteers in high school, non-mandatory volunteers prior to college, and students who had never volunteered prior to college. Gender, race/ethnicity, and parent(s)/guardian(s) education were also examined. Data were collected from 47,898 undergraduate students at 52 institutions across the U.S., as part of the Multi-Institutional Study of Leadership. Two four-way analyses of variance were conducted to evaluate differences in college 1) community service participation and 2) citizenship, when considering service group, gender, race/ethnicity, and parent(s)/guardian(s) education. Regarding community service participation, significant main effects emerged for service group, gender, and race/ethnicity. Results for citizenship evidenced significant main effects for service group and race/ethnicity, and interaction effects for parent(s)/guardian(s) education by race/ethnicity by gender, and parent(s)/guardian(s) education by race/ethnicity by gender by service group.