In Pyrénées-Atlantiques · INSEE, populations légales
Billère is the most densely populated city in Pyrénées-Atlantiques, at 3,223 inhab./km², ahead of Pau (2,554 inhab./km²) and Biarritz (2,241 inhab./km²). At the other end, Oloron-Sainte-Marie is the least densely populated city, at 156 inhab./km².
| Rank | City | Density | Population |
|---|---|---|---|
| 1 | Billère | 3,223 inhab./km² | 14,384 |
| 2 | Pau | 2,554 inhab./km² | 80,441 |
| 3 | Biarritz | 2,241 inhab./km² | 26,206 |
| 4 | Bayonne | 2,106 inhab./km² | 54,306 |
| 5 | Hendaye | 1,736 inhab./km² | 18,102 |
| 6 | Anglet | 1,602 inhab./km² | 43,271 |
| 7 | Lons | 1,178 inhab./km² | 13,606 |
| 8 | Guéthary | 889 inhab./km² | 1,306 |
| 9 | Saint-Jean-de-Luz | 779 inhab./km² | 14,857 |
| 10 | Saint-Jean-Pied-de-Port | 537 inhab./km² | 1,479 |
| 11 | Orthez | 235 inhab./km² | 10,881 |
| 12 | Urrugne | 207 inhab./km² | 10,661 |
| 13 | Oloron-Sainte-Marie | 156 inhab./km² | 10,684 |
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.