Objective: To describe the 3rd, 10th, 50th, 90th, and 97th percentile of weight, length, ponderal index (PI), head circumference (HC), and head circumference for birthweight index (HCBWI). Methods: Descriptive, retrospective, and transverse study performed in the Adolfo Guevara Velazco National Hospital (AGVNH) at 3400 m above sea level between January 2005 and December 2010. The main inclusion criteria were singleton pregnancy, term gestational age, and absence of fetal structural anomalies. Results: Of a total of 10,903 newborns evaluated, 7635 met inclusion criteria. Using the findings from the above population, polynomial models were constructed for the 3rd, 10th, 50th, 90th, and 97th percentiles of weight, length, HC, PI, and HCBWI. Conclusions: Reference curves were developed for the 3rd, 10th, 50th, 90th, and 97th percentile for weight, height, head circumference (HC), ponderal index (PI), and HCBWI for term newborns according to sex born at 3400 m above sea level.