Little is known about the early educational performance of children in migrant farmworker families. The authors examined the school readiness and early school success of 289 four-year-old preschool children of migrant families attending Redlands Christian Migrant Association centers. Children's school readiness was assessed and public school records were used for longitudinal follow-up. Children improved on age-4 school readiness domains, and although some struggled with emergent English literacy, many performed well on school readiness measures and later coursework. Children quickly became proficient in oral English, and had above-average school attendance. Many scored low on high-stakes tests; however, typically well enough for grade promotion. Students in the sample were comparable to similar students in poverty. School teachers and administrators should have high expectations for students from migrant families because many of them do stay in the public school system, and appear to be quite resilient despite many challenges they face.