The State of Mexico (Spanish: Estado de México), officially the Free and Sovereign State of Mexico (Spanish: Estado Libre y Soberano de México), is one of the 31 states which, with the Federal District, comprise the 32 federal entities of the United Mexican States. It is the most populous, as well as the densest in population. It is divided into 125 municipalities and its capital city is Toluca de Lerdo.
The State of Mexico is often abbreviated to "Edomex" from Estado de México in Spanish. It is located in South-Central Mexico. It is bordered by the states of Querétaro and Hidalgo to the north, Morelos and Guerrero to the south, Michoacán to the west, Tlaxcala and Puebla to the east and surrounds the Federal District.