While indigenous languages have largely disappeared since the Conquest, many old customs and traditions continue to live on as part of many people's identity. Many ethnic Nahuas conserve much of their ancient knowledge, such as dances, music agricultural practices, and rituals, although most are mixed with Catholic and moderns beliefs and practices. Since Mexico's census only counts the indigenous by language spoken and not by ethnicity, it is not possible to be sure of the precise number of Nahua in Morelos. Between 32 and 35 communities in the state have been identified as being "indigenous" based on prevailing customs and tradition. However, this does not take into account migrant workers or who have immigrated to the state from other parts of Mexico. In 2020, 37,569 people were counted as speaking an indigenous language, with the municipalities of Cuautla, Cuernavaca, Ayala, Puente de Ixtla, Temixco, and Tetela del Volcàn having the highest number of speakers.