Atlacomulco is one of the 125 municipalities that make up the State of Mexico, Mexico. The municipality has both urban and rural communities and has an area of 258,648 km² and its municipal seat is the city of Atlacomulco de Fabela. It limits to the north with Temascalcingo and Acambay. To the south with Jocotitlán. To the east with Timilpan and Jocotitlán. And to the west with Jocotitlán and Temascalcingo. According to the 2010 census it has a total population of 93,718 inhabitants.