The State of Mexico is one of the 32 federal entities of Mexico, located in the central part of the country. It surrounds the capital, Mexico City, and is known for its diverse geography, which includes mountains, valleys, and forests. The state has a rich cultural heritage, with numerous archaeological sites and colonial towns. Economically, the State of Mexico is one of the most important regions in the country, contributing significantly to Mexico's industrial and agricultural output. It has a large population, making it one of the most densely populated states. Key cities include Toluca, the state capital, and Ecatepec, a major urban center.