In Isère · INSEE, populations légales
Grenoble is the most densely populated city in Isère, at 8,470 inhab./km², ahead of Échirolles (4,760 inhab./km²) and Saint-Martin-d'Hères (3,959 inhab./km²). At the other end, Sassenage is the least densely populated city, at 874 inhab./km².
| Rank | City | Density | Population |
|---|---|---|---|
| 1 | Grenoble | 8,470 inhab./km² | 156,140 |
| 2 | Échirolles | 4,760 inhab./km² | 37,491 |
| 3 | Saint-Martin-d'Hères | 3,959 inhab./km² | 37,695 |
| 4 | Fontaine | 3,276 inhab./km² | 22,020 |
| 5 | Eybens | 2,316 inhab./km² | 10,493 |
| 6 | Le Pont-de-Claix | 1,922 inhab./km² | 10,956 |
| 7 | Villefontaine | 1,870 inhab./km² | 19,445 |
| 8 | Saint-Égrève | 1,668 inhab./km² | 17,986 |
| 9 | Meylan | 1,480 inhab./km² | 18,770 |
| 10 | Vienne | 1,406 inhab./km² | 31,778 |
| 11 | L'Isle-d'Abeau | 1,351 inhab./km² | 17,515 |
| 12 | Charvieu-Chavagneux | 1,241 inhab./km² | 10,547 |
| 13 | Bourgoin-Jallieu | 1,223 inhab./km² | 30,151 |
| 14 | Seyssinet-Pariset | 1,089 inhab./km² | 11,739 |
| 15 | Voiron | 989 inhab./km² | 21,847 |
| 16 | Sassenage | 874 inhab./km² | 11,646 |
The same ranking for the whole of France : The densest cities in France · The least densely populated cities in France
Scope: France, metropolitan and overseas, Corsica and the DROM included. This dataset holds every commune of 10,000 inhabitants or more, plus smaller communes famous enough to be household names, 1,131 in all. It is not the full list of 35,000 French communes, so a village can sit outside a ranking whose extreme it would otherwise hold.
Method and sources: populations are the INSEE legal populations, boundaries and coordinates come from the IGN commune registry, both served by geo.api.gouv.fr. Density is the population divided by the commune's area; distances are measured as the crow flies from the commune's centre. Data read on August 28, 2026.