Region · code 11
Île-de-France
Chef-lieu in the COG: Paris.
Last updated: October 17, 2026. Unofficial information. Confirm with your official election office (Ministère de l'Intérieur).
- Municipal population
- 12,463,067
- Ensemble file, France excluding Mayotte. Reference date 1 January 2023, in force on 1 January 2026.
- Total population
- 12,571,781
- Municipal population plus the population counted separately, in the same file when it gives the figure.
Region code 11. Chef-lieu Paris (75056). Arrondissements 25. Cantons 155. Communes 1,266.
Elections for this region
Page F1939, verified on 1 July 2026, places the next regional elections in March 2028 and the previous vote in June 2021. It says the precise date is announced at least six weeks ahead. It does not print a day in March 2028. The same page places departmental elections on the same horizon. The presidential election of 18 April and 2 May 2027 is national.
Body with departmental powers
The COG file of territorial collectivities that hold departmental powers, joined to communes of type COM, prints these names for this region:
- Conseil départemental de L'Essonne (91D)
- Conseil départemental de La Seine-Saint-Denis (93D)
- Conseil départemental de Seine-et-Marne (77D)
- Conseil départemental des Hauts-de-Seine (92D)
- Conseil départemental des Yvelines (78D)
- Conseil départemental du Val-d'Oise (95D)
- Conseil départemental du Val-de-Marne (94D)
- Ville de Paris (75C)
Gap. The name of the person who presides over the regional executive is not copied here. Department and commune pages are not published in this release. The table below repeats the COG departments; they are not links.
Departments
| Code | Name in the COG | Chef-lieu | Communes | Municipal population |
|---|---|---|---|---|
| 75 | Paris | Paris | 1 | 2,103,778 |
| 77 | Seine-et-Marne | Melun | 507 | 1,468,108 |
| 78 | Yvelines | Versailles | 259 | 1,485,086 |
| 91 | Essonne | Évry-Courcouronnes | 194 | 1,338,485 |
| 92 | Hauts-de-Seine | Nanterre | 36 | 1,654,712 |
| 93 | Seine-Saint-Denis | Bobigny | 39 | 1,704,316 |
| 94 | Val-de-Marne | Créteil | 47 | 1,426,929 |
| 95 | Val-d'Oise | Pontoise | 183 | 1,281,653 |
Population: the ensemble file for France excluding Mayotte, when it contains the department. Communes, name and chef-lieu: COG at 1 January 2026. For departments present in both files, the commune count in the population file equals the number of TYPECOM “COM” rows in the COG.
Previous and next name
Sources
- Insee, Code officiel géographique au 1er janvier 2026 — read 2026-10-17
- Insee, Populations de référence 2023, authentifiées par le décret n° 2025-1362 du 26 décembre 2025 — read 2026-10-17
- Insee, fichier d'ensemble des populations en 2023, France hors Mayotte — read 2026-10-17
- Service-Public, « Quelles sont les dates des prochaines élections ? » (F1939), vérifié le 1er juillet 2026 — read 2026-10-17
- Ministère de l'Intérieur, Les élections en France — read 2026-10-17
Public information from INSEE, Service-Public, Légifrance and data.gouv.fr reused under the Licence Ouverte / Open Licence 2.0 (Etalab). The source and the date read are given for each item above. No images or logos are reproduced.