The denominations of the municipalities and provinces presented here are those that feature in the Ministry of Public Administration Local Institutions Register. In the said register created by means of Royal Decree 382/1986, of 10 February, following the guidelines established by Law 2/1985 of 2 April, Regulator of Local Regime Bases, all local institutions must register. These are understood to be those municipalities, provinces, islands, institutions with territorial scope less than municipality and municipality man communities.

This presents the relation of municipalities, ordered by province and within this by municipality code updated to 1 January as well as a chapter that contains the modifications registered during the previous year.

The last paragraph features:

1) Those that have been registered in the Ministry Local Institutions Register for the Public Administrations, created by means of Royal Decree 382/1986 of 10 February, following the guidelines established in Law 7/1985 of 2 April, Regulator of Local Regime Bases. These may be of two types:

1.a) Alterations to municipalities, registered during the said period, that are covered in sections a), b) and c) from article 3.1 of the rewritten text from the legal guidelines in force on local regime, in other words, those that have occurred:

a) By incorporation of one or more municipalities to another or other neighbouring municipalities.

b) By fusion of two or more neighbouring municipalities.

c) By segregation of the part of the land of one or various municipalities to build another independent municipality.

1.b) Changes in the official denominations of municipalities

2) Corrections carried out in the denomination of some municipalities as a consequence of the filtering carried out by the Local Institutions Register with Autonomous Communities.

The municipality code is comprised of five digits: the first two correspond to the province and the other three to the municipality therein. Likewise, a sixth control digit is published, assigned using a calculation rule, which enables the detection of recording and encoding errors.