Temascalcingo is one of 125 municipalities in the State of Mexico, Mexico. The municipal seat is the town of Temascalcingo de José María Velasco. It is located in the northwest of the state. The temazcal was very common in Temascalcingo. The name Temascalcingo has its roots in Nahuatl. It means place of the little temazcal. The town is one of the "Pueblo con Encanto" of the State of Mexico.

The State of Mexico, officially just Mexico, is one of the 32 federal entities of the United Mexican States. Commonly known as Edomex to distinguish it from the name of the whole country, it is the most populous, as well as the most densely populated, state in the country.