The State of Mexico, officially just Mexico, is one of the 32 federal entities of the United Mexican States. Sharing its name with both the country and its capital, Mexico City, the state is colloquially distinguished as Edomex ([e.ðoˈmeks], from E[sta]do Méx[ico] "State of Mexico"). It is the most populous and second most densely populated state in Mexico.
Located in central Mexico, the state is divided into 125 municipalities. The state capital city is Toluca de Lerdo ("Toluca"), while its largest city is Ecatepec de Morelos ("Ecatepec"). The State of Mexico surrounds Mexico City on three sides. It borders the states of Querétaro and Hidalgo to the north, Morelos and Guerrero to the south, Michoacán to the west, and Tlaxcala and Puebla to the east.