Using longitudinal data on a nationally representative U.S. cohort, this study examined the roles of language minority (LM) status and English proficiency in English reading growth across the elementary and middle school years. Piecewise growth modeling was used to compare English reading growth trajectories for native English speakers and LM learners of differing initial English proficiency, with and without controlling for socioeconomic status. LM learners who enter kindergarten fluent in English catch up with native English speakers nationally by first grade and maintain nationally average levels through eighth grade. LM learners with initially limited English proficiency demonstrated English reading trajectories that remain substantially below national averages, but converge with those of their peers from similar socioeconomic backgrounds during middle school. (Contains 5 notes, 5 figures, and 4 tables.)