The municipality of Epazoyucan is one of the eighty-four municipalities that make up the state of Hidalgo, Mexico. Whose municipal seat is the town of Epazoyucan. The municipality is located to the south center of the Hidalgo territory between the parallels 19°57 'and 20°08' of north latitude. The meridians 98°34 'and 98°44' west longitude. With an altitude between 2300 and 3100 meters above sea level, this municipality has an area of 139.58 km2, and represents 0.67% of the surface area of the state, within the geographical region known as Comarca Minera. It borders to the north with the municipalities of Mineral de la Reforma, Mineral del Monte, Omitlán de Juárez and Singuilucan. To the east the municipalities of Singuilucan and Zempoala.
To the south with the municipality of Zempoala. To the west with the municipalities of Zempoala and Mineral de la Reforma. Epazoyucan is considered within the metropolitan municipalities of the metropolitan area of Pachuca, also integrated by the municipalities of Pachuca de Soto, Mineral del Monte, Mineral de la Reforma, San Agustín Tlaxiaca, Zapotlán de Juárez and Zempoala, being Pachuca de Soto the municipality central.