It covers a total surface area of 192.7 km² at an altitude of 6,634 ft.

[2] The town of Ajacuba, a municipal seat, has governing jurisdiction over the following communities: Santiago Tezontlale, Vicente Guerrero, Tecomatlan, and Tulancalco.

[3] The total municipality extends 96.37 and borders with the municipalities of Tetepango, San Agustín Tlaxiaca, Atitalaquia, Atotonilco de Tula, Progreso de Obregón and the state of México (Hueypoxtla and Apaxco).

[4] The highest mountain the Picacho in the Sierra Tezontlalpa, it rises 2,800 metres (9,200 ft) above sea level,[5] on the border between the municipalities of San Agustín Tlaxiaca and Atitalaquia.

The people who visit Ajacuba usually eat the regional dishes such as barbacoa, tlacoyos, tacos, etc.