Scales or measurements of vitality propose various factors to assess the degree of endangerment of a language. Using these measurements offers important insights into the maintenance of a language and identifies the areas in need of support. The current study employed seven scales to assess the vitality of Nahuatl in the language community of Puebla, Mexico. Data on the selected vitality indicators, absolute speaker population, and intergenerational language transmission were collected through questionnaires on linguistic knowledge and home language use. Results showed that five out of the seven scales characterized Nahuatl as not at an immediate risk of endangerment as it had speakers in all age groups and was spoken at home by them. However, there was need for more emphasis on transmitting Nahuatl to the younger generations who made up the majority of the non-Nahuatl speaker population and were more likely to use Spanish than Nahuatl. The approach taken by this study will be of value when assessing other communities facing language endangerment and seeking language maintenance and revitalization.