Huichapan (Otomi: Nxamädo) (Spanish ) is a town and one of the 84 municipalities of Hidalgo, in central-eastern Mexico. The municipality covers an area of 668.1 km². As of 2005, the municipality had a total population of 39,734. In 2017 there were 425 inhabitants who spoke a indigenous language, primarily Otomí del Valle del Mezquital
