Population: 119,019 inhabitants (+1.9% between 2013 and 2023)
Rental yield in Boulogne-Billancourt →
Estimated asking rents — "Carte des loyers" 2025 (French Ministry of Ecological Transition). Gross yield = annual rent / median sale price per sqm.
| Neighborhood | Change | Price/sqm |
|---|
| Neighborhood | Change | Price/sqm |
|---|
| Rate ‰ | France | |
|---|---|---|
| Home burglaries | 2.6 | 3.1 |
| Physical assaults (non-domestic) | 1.7 | 3.2 |
| Vehicle thefts | 1.9 | 1.8 |
| Non-violent thefts | 14.1 | 9.1 |
| Vandalism | 7.7 | 7.9 |
Source: SSMSI, French Ministry of the Interior. Offences recorded by police and gendarmerie, per 1,000 inhabitants — unreported offences are not included.
Energy sieves (F+G): 15.4% (France: 9.9%)
| Label | Share |
|---|---|
| A | 0.1% |
| B | 2.3% |
| C | 25.3% |
| D | 30.4% |
| E | 26.5% |
| F | 10.0% |
| G | 5.4% |
Source: ADEME (2026), 39,890 diagnostics performed since July 2021 — share of diagnosed dwellings, not a census of the stock. G banned from rental since 2025, F in 2028, E in 2034.