Ojo de Agua, Tecámac
Ojo de Agua is the largest town in the municipality of Tecámac in State of Mexico, Mexico. It is located in the northeastern part of the state, northeast of the Federal District and within the Greater Mexico City urban area. It had a 2010 census population of 242,272 inhabitants, or 66.45 percent of its municipality's total of 364,579. Ojo de Agua is the largest locality in Mexico that is not a municipal seat. Ojo de Agua lies at an elevation of 2,248 m above sea level.
