Region I (Spanish: Región XV Texcoco) is an

intrastate region An intrastate region of Mexico (Spanish: ''Región'') is a collection of municipalities in a Mexican state that are grouped together for statistical purposes. For example, in the State of Mexico, the 125 municipalities are grouped into 20 regions, ...

within the

State of Mexico The State of Mexico ( es, Estado de México; ), officially just Mexico ( es, México), is one of the 32 federal entities of the United Mexican States. Commonly known as Edomex (from ) to distinguish it from the name of the whole country, it is ...

, one of 20. It borders the states of

Puebla Puebla ( en, colony, settlement), officially Free and Sovereign State of Puebla ( es, Estado Libre y Soberano de Puebla), is one of the 32 states which comprise the Federal Entities of Mexico. It is divided into 217 municipalities and its cap ...

to the east corner of the state. The region comprises four municipalities (2020):

Atenco San Salvador Atenco is the municipal seat of Atenco, in the Mexican state of Mexico. The name "Atenco" comes from a Nahuatl phrase meaning "place on the edge of water". The town Fifteen excavations have been done in this area, uncovering mammo ...

, Chiconcuac, Texcoco and

Tezoyuca Tezoyuca is a municipality in the State of Mexico in Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the so ...

.Unión Edomex
/ref> It is largely rural.

Municipalities

* Chiconcuac * Texcoco *

References

{{México-geo-stub Regions of the State of Mexico