In Hérault · INSEE, populations légales
Montpellier is the most densely populated city in Hérault, at 5,434 inhab./km², ahead of Castelnau-le-Lez (2,346 inhab./km²) and Juvignac (1,289 inhab./km²). At the other end, Mauguio is the least densely populated city, at 215 inhab./km².
| Rank | City | Density | Population |
|---|---|---|---|
| 1 | Montpellier | 5,434 inhab./km² | 310,240 |
| 2 | Castelnau-le-Lez | 2,346 inhab./km² | 26,058 |
| 3 | Juvignac | 1,289 inhab./km² | 14,055 |
| 4 | Sète | 1,117 inhab./km² | 45,337 |
| 5 | Lunel | 1,101 inhab./km² | 26,623 |
| 6 | Saint-Jean-de-Védas | 1,013 inhab./km² | 13,328 |
| 7 | Béziers | 851 inhab./km² | 81,545 |
| 8 | Saint-Gély-du-Fesc | 632 inhab./km² | 10,472 |
| 9 | Frontignan | 603 inhab./km² | 24,136 |
| 10 | Agde | 596 inhab./km² | 29,939 |
| 11 | Lattes | 538 inhab./km² | 17,351 |
| 12 | Villeneuve-lès-Maguelone | 349 inhab./km² | 10,872 |
| 13 | Mèze | 265 inhab./km² | 12,669 |
| 14 | Mauguio | 215 inhab./km² | 16,522 |
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.