Infant and childhood mortality (birth to 14 years), and growth status of 143 schoolchildren (5 to 14 years) are considered for a rural, Zapotec-speaking community (population, 1703) in the Valley of Oaxaca, Mexico. Mortality statistics are based on civil records from 1945 to 1970. Growth status is based on weight and height for age, and weight for weight for height. In the Zapotec community, about 59% of all deaths occur in children under 15 years of age; thus, a considerable percentage of individuals die before reaching reproductive age. Children under 5 years of age, however, account for approximately 54% of all deaths, and mortality in children 1 to 4 years of age is especially high (27% of all deaths). The latter figure suggests chronic malnutrition, frequent disease and generally poor circumstances in the community. This suggestion is supported in the heights and weights of schoolchildren, survivors of the rigorous selection processes of the pre-school years. The majority of children are below the 5th centile for stature in well-nourished American children. Weight for height, however, approximates that of the USA reference data.