Aging individuals from the skeleton is a fundamental part of forensic anthropology and is achieved by examining the age-related morphology of various bony elements. Reliable age estimation methods are available for juveniles, in the forms of molar eruption and epiphyseal fusion (Coqueugniot and Weaver 2007; Rissech et al. 2007; Cunha et al. 2009; Anderson, Anderson and Wescott 2010; Ubelaker 2010). Aging methods available for adult individuals rely on macroscopic degenerative changes within specific elements (Krogman 1986; Scheur and Black 2004; White and Folkens 2005; Anderson, Anderson and Wescott 2010). The intermediate age range of near adults (ages 15-25 years) is the focus of this study, as they have not reached complete skeletal maturation, yet are often subjected to the aging methods created for adult individuals. The primary objective of this research was to apply three primary adult aging methods (Iscan and Loth 1984, 1985; Lovejoy and Meindl, 1985; Brooks and Suchey 1990) to skeletons between the ages of 15 and 25 years in order to test the accuracy of adult methods on a near adult population. The use of multifactorial methods was expected to create higher accuracy compared to the singular age estimation methods. Morphologies of the near adult skeleton were examined for their potential in age estimation, and select variables in the original methods were modified to increase usability on a near adult population. Thirty-two skeletons (ages 15 to 25 years) with known age and ancestry were examined from the Hamann-Todd Osteological Collection. Age estimation methods were performed on the individuals, including the Iscan and Loth (1984, 1985) sternal fourth rib end method, Suchey-Brooks (1990) pubic symphysis method, and Lovejoy and Meindl (1985) auricular surface method. An independent analysis of molar eruption and epiphyseal fusion was also performed. Based on the results of the aging methods, estimated age ranges for each individual were created and tested against the collection ages by using a Student's Paired t-test, calculations of inaccuracy and bias, Chi-square analyses, and bivariate analyses using least squares regression. The results indicate support for the hypothesis that the rib, pubic symphysis, and auricular surface method are less accurate on a near adult population, especially when tested against multifactorial methods such as the combined rib, pubic symphysis, and auricular surface, the combined independent age factor, and the combined age from all methods. These multifactorial methods as well as the age estimates based on modifications to the original methods proved to be superior predictors of age. The greatest limitation of the study is the small sample size, and future research on aging near adult populations should aim to use a larger sample with a more robust distribution of each age in the near adult age range. Modifications to the rib, pubic symphysis and auricular surface methods should be included in the original methods for use on near adult individuals.