This shp contains a geographic subdivision of the Metropolitan Area of Mexico City.

The subdivision is called AGEB (http://en.www.inegi.org.mx/app/glosario/default.html?p=localidades).

The AGEB is a geographic area occupied by a set of blocks perfectly delimited by streets, avenues, walkways, or any other easily identifiable feature on the ground and whose land use is mainly residential, industrial, service, and commercial, among others, and are only assigned within urban areas, which are those with a population greater than or equal to 2,500 inhabitants, and in municipal capitals. A typical Urban AGEB goes from 25 to 50 blocks.

The AGEB is formed by four grupo of keys (XX XXX XXXX XXXX)
1. The first group is formed by two alphanumeric digits (from 00 to 32), wichs are associated with a state in Mexico
2. The second group is formed by three  alphanumeric digits (from 000 to 570), wichs are associated with a municipality in Mexico
3. The third group is formed by four alphanumeric digits (from 0000 to 9999), wichs are associated with a locality in Mexico
4. The fourth group is formed by four alphanumeric digits. This group's first three alphanumeric digits range from 000 to 999, and the last alphanumeric digits range from 0 to 9 or from A to P. This group is associated with an AGEB in Mexico.


The columns of the shp are defined as follows.

cvegeo: key formed by four groups of keys (XX XXX XXXX XXXX)
cve_ent: alphanumeric digits (from 00 to 32) wichs are associated with a state in Mexico
nom_ent: name of the state
cve_mun: alphanumeric digits (from 000 to 570) wichs are associated with a municipality in Mexico
NOM_MUN: name of the municipality
cve_loc: alphanumeric digits (from 0000 to 9999) wichs are associated with a locality in Mexico
cve_ageb: four alphanumeric digits. This group's first three alphanumeric digits range from 000 to 999, and the last is from 0 to 9 or A to P. This group is associated with an AGEB in Mexico