Abstract Background The identification and correction of malnutrition in children remains a critical public health issue in many developing countries. In this study, the rate of anemia and standardized indicators of physical growth were investigated in schoolchildren from Haiti. Methods Hemoglobin concentrations, height, and weight were collected from schoolchildren ( n = 615) and evaluated by World Health Organization (WHO) standardized classifications for anemia and child growth. Data on glucose-6-dehydrogenase (G6PD) deficiency and current or previous malaria infection available for all students; a subset of anemia and non-anemic males ( n = 43) were tested for serum ferritin. School A ( n = 504) had a school-based supplemental nutrition program, while School B ( n = 111) did not. Results Anemia was identified in 48.3% of students (95% CI: 44.3, 52.3), and not associated with BMI Z scores ( P = 0.28) or serum ferritin concentrations ( P = 0.17). The average Z scores for body mass index (BMI) of students at School A was within the normal range, while Z scores for BMI at School B were below average. Compared to school A, students at School B had significantly higher ( P