In Loire · INSEE, populations légales
Roanne is the most densely populated city in Loire, at 2,196 inhab./km², ahead of Saint-Étienne (2,163 inhab./km²) and Rive-de-Gier (2,064 inhab./km²). At the other end, Saint-Just-Saint-Rambert is the least densely populated city, at 381 inhab./km².
| Rank | City | Density | Population |
|---|---|---|---|
| 1 | Roanne | 2,196 inhab./km² | 35,409 |
| 2 | Saint-Étienne | 2,163 inhab./km² | 173,136 |
| 3 | Rive-de-Gier | 2,064 inhab./km² | 15,242 |
| 4 | Firminy | 1,627 inhab./km² | 17,060 |
| 5 | Montbrison | 991 inhab./km² | 16,123 |
| 6 | Riorges | 712 inhab./km² | 11,139 |
| 7 | Le Chambon-Feugerolles | 705 inhab./km² | 12,314 |
| 8 | Andrézieux-Bouthéon | 657 inhab./km² | 10,425 |
| 9 | Saint-Chamond | 646 inhab./km² | 35,646 |
| 10 | Saint-Just-Saint-Rambert | 381 inhab./km² | 15,764 |
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.