In Oise · INSEE, populations légales
Creil is the most densely populated city in Oise, at 3,281 inhab./km², ahead of Nogent-sur-Oise (2,959 inhab./km²) and Clermont (1,819 inhab./km²). At the other end, Méru is the least densely populated city, at 603 inhab./km².
| Rank | City | Density | Population |
|---|---|---|---|
| 1 | Creil | 3,281 inhab./km² | 36,301 |
| 2 | Nogent-sur-Oise | 2,959 inhab./km² | 21,907 |
| 3 | Clermont | 1,819 inhab./km² | 10,564 |
| 4 | Beauvais | 1,687 inhab./km² | 55,550 |
| 5 | Montataire | 1,341 inhab./km² | 14,257 |
| 6 | Crépy-en-Valois | 872 inhab./km² | 14,351 |
| 7 | Pont-Sainte-Maxence | 836 inhab./km² | 12,361 |
| 8 | Compiègne | 768 inhab./km² | 40,761 |
| 9 | Noyon | 718 inhab./km² | 12,971 |
| 10 | Chantilly | 660 inhab./km² | 10,591 |
| 11 | Senlis | 629 inhab./km² | 15,157 |
| 12 | Méru | 603 inhab./km² | 13,897 |
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.