Mexico City is divided into sixteen mayoralties (Spanish: alcaldías), which have regulatory powers and are not fully autonomous in their internal administration. As of 2000, the citizens within a mayoralty elect by plurality a head of government, as of 2016, known as "mayor" (Spanish: alcalde). Mexico City recorded an official 2010 census tally of 8,851,080 inhabitants.
The boroughs are subdivided into neighborhoods (colonias in Spanish) and in some cases in the southernmost municipalities, also into towns and rural settlements.
Mexico City as a whole is bordered directly by the following municipalities, going clockwise, starting from the west-southwest.