Sources
All the Observatory's data come from official public sources: the Ministry of the Interior and the National Statistics Institute (INE). Nothing is made up or estimated: every result is the one published for each polling station, added up by section, municipality and area.
- Elections
- 6
- Files downloaded
- 15
- Official sources
- 2
- Data downloaded
- 6 October 2026
Sources and licences
| Source | What | Used for | Licence | Updated |
|---|---|---|---|---|
| Ministry of the Interior (Spain) | Infoelectoral: results by polling station | Votes and seats for Congress, 2011–2023 | Reuse with attribution | 6 October 2026 |
| INE (Spain) | Digital map of census sections | Section and municipal boundaries as of 1 January each year; each election uses the best-matching one (municipalities: 2025) | CC BY 4.0 | 6 October 2026 |
| Wikidata | Basque names of municipalities | Official Basque names of the municipalities of Hego Euskal Herria, corrected by hand (those of the Hauteskunde Behatokia) | CC0 1.0 | 6 October 2026 |
| EOX IT Services (Copernicus) | Sentinel-2 cloudless 2024 | Satellite image background | CC BY-NC-SA 4.0 | Live |
Origin of each file
The files stay at the source; each link downloads the original. The SHA-256 fingerprint of each file is kept to know if it changes at the source.
Results by polling station · Ministry of the Interior
| Election | File | Size | Downloaded | SHA-256 |
|---|---|---|---|---|
| November 2011 | 02201111_MESA.zip | 4.9 MB | 6 October 2026 | 1448b958ffbf… |
| December 2015 | 02201512_MESA.zip | 4.9 MB | 6 October 2026 | d99e08485e3a… |
| June 2016 | 02201606_MESA.zip | 5.1 MB | 6 October 2026 | d41c21244a58… |
| April 2019 | 02201904_MESA.zip | 4.7 MB | 6 October 2026 | 92f2ff6c1c9a… |
| November 2019 | 02201911_MESA.zip | 5.8 MB | 6 October 2026 | e7b621f295d7… |
| July 2023 | 02202307_MESA.zip | 4.6 MB | 6 October 2026 | e78fc231326a… |
Census sections · INE
| Boundaries as of | File | Size | Downloaded | SHA-256 |
|---|---|---|---|---|
| 1 January 2011 | seccionado_2011.zip | 65.4 MB | 6 October 2026 | e63c992f076f… |
| 1 January 2012 | seccionado_2012.zip | 64.0 MB | 6 October 2026 | 772ad76b84e1… |
| 1 January 2015 | seccionado_2015.zip | 63.9 MB | 6 October 2026 | 50dda58ed4af… |
| 1 January 2016 | seccionado_2016.zip | 64.0 MB | 6 October 2026 | 3410af763bfe… |
| 1 January 2019 | seccionado_2019.zip | 72.1 MB | 6 October 2026 | 656119dadadb… |
| 1 January 2020 | seccionado_2020.zip | 65.9 MB | 6 October 2026 | 07544bb49256… |
| 1 January 2023 | seccionado_2023.zip | 64.9 MB | 6 October 2026 | 7a15e700a459… |
| 1 January 2024 | seccionado_2024.zip | 65.7 MB | 6 October 2026 | df931fa0d372… |
| 1 January 2025 | seccionado_2025.zip | 60.3 MB | 6 October 2026 | 55c9da7e34d3… |