Map a list of Spanish municipalities

How to use it

1. 1

   Paste your list

   One municipality per line, by name or by its five-digit INE code. You can copy a column from Excel or open the file. To weigh them differently, add a number after each one: customers, sales, visits.

2. 2

   Check the doubtful ones

   If several municipalities share a name (there are two Arroyomolinos, two Mieres, two Torrent…) or a name has a typo, it shows up under “To check” with a drop-down to pick the right one.

3. 3

   Pick a view

   Points (bigger the more they weigh), heat map (where they cluster) or areas (each municipality shaded). Download the map as a PNG or the list with INE codes, provinces, coordinates and population as a CSV.

What people use it for

• Customers in Spain

  The towns your customers or orders come from, with a count for each, to see at a glance where you sell and where you don’t.

• Sales and service areas

  The municipalities a sales rep, a branch or a technician covers, shaded as areas for a meeting or a website.

• Research and fieldwork

  The municipalities in a survey, a study area or a list from an official spreadsheet, checked against the official names and codes.

• Trips and challenges

  The towns you’ve visited, the ones left in a valley or the stops on the Camino de Santiago.

Where the data comes from

The 8,132 municipalities, their official names, codes and population come from the municipal register (Padrón) as of January 1, 2025, published by the INE (Instituto Nacional de Estadística, Spain’s national statistics office). Each municipality’s point is its main town, and its shape is its boundary from the IGN (Instituto Geográfico Nacional, the national mapping agency).

Names are matched ignoring accents and capitals, with the article at the front or the end (“La Acebeda” or “Acebeda, La”), in any of their official names (“Alicante” or “Alacant”, since many places in Catalonia, Valencia, the Balearic Islands, the Basque Country and Galicia have a name in Spanish and one in the local language), with common Spanish forms (“Lérida”, “Gerona”, “Orense”) and with small typos. INE codes work with five digits, with four (if Excel dropped the leading zero) or with six (with the check digit).

On the heat map and the points, each municipality weighs the sum of its values; without values, the number of times it appears in the list. In area view, colors are five classes with roughly the same number of municipalities each.

Municipalities, towns and postal codes

A municipality (municipio) is the area governed by one town council. Spain is completely divided into them, from big cities to villages of a few dozen people, so every address belongs to one. Many municipalities include several villages or hamlets: those aren’t on the INE list, so write the municipality they belong to, which is usually named after its main town.

Every municipality has a five-digit INE code: two digits for its province and three for the municipality (28079 is Madrid, 08019 Barcelona). Spanish postal codes aren’t open data, so the tool can’t use them. Ceuta and Melilla are included; areas with no municipality (such as the Chafarinas Islands) aren’t.