---
entity_id: city:fr:insee5:92012
entity_type: city
name: Boulogne-Billancourt
country_code: FR
country: France
slug: boulogne-billancourt
canonical_url: https://immigrationdb.com/cities/fr/boulogne-billancourt/
json_url: https://immigrationdb.com/data/cities/fr/boulogne-billancourt.json
markdown_url: https://immigrationdb.com/data/cities/fr/boulogne-billancourt.md
mcp_uri: immigrationdb://city/fr/boulogne-billancourt
snapshot_id: approved-static-bb6d69cd3c074ae2
generated_at: 2026-08-04
last_verified: 2026-08-01
fact_count: 20
metric_dictionary_url: https://immigrationdb.com/data/metrics.json
license_url: https://immigrationdb.com/about/copyright/
---

# Boulogne-Billancourt

Boulogne-Billancourt is a city in France, with a population of 119,808 at the start of 2024. In 2021, the foreign population was 14,032. A monthly estimate placed internet service at €23 in December 2022. A monthly estimate placed basic utilities for an 85 m² home at €135 in December 2022.

## Population

The city covered 6.2 km² in 2024. Population density was 19,482.2 people per km² in 2022.

## Climate

Annual PM2.5 was 8.81 µg/m³ in 2024. Annual NO₂ was 19.3 µg/m³ in 2024.

## Work

The unemployment rate was 8.6% at the end of 2022.

## Facts

| Metric | metric_id | Value | Scope | Observed | Verified | Freshness | Lane | Source |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Foreign residents | `foreign_population_total` | 14,032 people | city | 2021 | 2026-07-15 | stale | verified | [1] |
| Population | `population_total` | 119,019 people | municipality | 2025-01-01 | 2026-07-14 | aging | verified | [2] |
| NO₂ — latest reading | `air_quality_no2_current_ug_m3` | 22.35 µg/m³ | city | 2026-07-15 | 2026-07-15 | fresh | verified | [3] |
| Gigabit broadband availability | `broadband_gigabit_availability_percent` | 98.57 % | city | 2026-03-31 | 2026-07-15 | fresh | verified | [4] |
| Unemployment rate | `unemployment_total_percent` | 8.6042 % | city | 2022-12-31 | 2026-07-26 | stale | verified | [5] |
| NO₂ — annual mean | `air_quality_no2_annual_ug_m3` | 19.2745 µg/m³ | city | 2024 | 2026-07-15 | stale | verified | [6] |
| PM10 — annual mean | `air_quality_pm10_annual_ug_m3` | 19 µg/m³ | nearest_station | 2024-12-31 | 2026-08-01 | stale | verified | [7] |
| PM2.5 — annual mean | `air_quality_pm25_annual_ug_m3` | 8.8102 µg/m³ | city | 2024 | 2026-07-15 | stale | verified | [6] |
| Average daytime high by month | `climate_monthly_high_c` | Jan 7.6 · Feb 8.8 · Mar 12.8 · Apr 16.6 · May 20.2 · Jun 23.4 · Jul 25.7 · Aug 25.6 · Sep 21.5 · Oct 16.5 · Nov 11.1 · Dec 8 °C | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [8] |
| Average night-time low by month | `climate_monthly_low_c` | Jan 3.2 · Feb 3.3 · Mar 5.6 · Apr 7.9 · May 11.1 · Jun 14.2 · Jul 16.2 · Aug 16 · Sep 13 · Oct 9.9 · Nov 6.2 · Dec 3.8 °C | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [8] |
| Average temperature by month | `climate_monthly_mean_c` | Jan 5.4 · Feb 6 · Mar 9.2 · Apr 12.2 · May 15.6 · Jun 18.8 · Jul 20.9 · Aug 20.8 · Sep 17.2 · Oct 13.2 · Nov 8.7 · Dec 5.9 °C | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [8] |
| Average precipitation by month | `climate_monthly_precip_mm` | Jan 47.6 · Feb 41.8 · Mar 45.2 · Apr 45.8 · May 69 · Jun 51.3 · Jul 59.4 · Aug 58 · Sep 44.7 · Oct 55.2 · Nov 54.3 · Dec 62 mm | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [8] |
| Average sunshine by month | `climate_monthly_sunshine_h` | Jan 59 · Feb 83 · Mar 134 · Apr 177 · May 201 · Jun 203 · Jul 222 · Aug 215 · Sep 174 · Oct 118 · Nov 69 · Dec 56 hours | nearest_station | 1991-12-31 | 2026-07-31 | stale | verified | [8] |
| City area | `city_area_km2` | 6.2 km2 | place | 2024-01-01 | 2026-06-30 | stale | verified | [9] |
| Fitness club membership, monthly | `col_fitness_club_eur_month` | 54.7276 EUR/month | city | 2022-12-31 | 2026-07-27 | stale | supplemental | [10] |
| Internet, 60 Mbps unlimited | `col_internet_60mbps_eur_month` | 22.8921 EUR/month | city | 2022-12-31 | 2026-07-27 | stale | supplemental | [10] |
| Meal at an inexpensive restaurant | `col_meal_inexpensive_restaurant_eur` | 15.9225 EUR | city | 2022-12-31 | 2026-07-27 | stale | supplemental | [10] |
| Monthly transport pass | `col_transport_monthly_pass_eur` | 74.8337 EUR/month | city | 2022-12-31 | 2026-07-27 | stale | supplemental | [10] |
| Basic utilities, 85 m² home | `col_utilities_basic_85m2_eur_month` | 135.3127 EUR/month | city | 2022-12-31 | 2026-07-27 | stale | supplemental | [10] |
| Population density | `population_density_per_km2` | 19,482.1718 people/km² | place | 2022-01-01 | 2026-07-14 | stale | verified | [11] |

Every row keeps the value, unit, geographic scope, observation date, verification date and the numbered source below. A missing metric means the city does not publish it; nothing is imputed.

## Sources

1. Nationalité en 2021 — Base des tableaux détaillés — NAT1 — Official source — https://www.insee.fr/fr/statistiques/fichier/8202752/TD_NAT1_2021_csv.zip
2. France official denominator source — Official source — https://www.insee.fr/fr/statistiques/fichier/8680726/ensemble.zip
3. Latest valid NO2 hourly station observation on the official LCSQA E2 current-day extract, mapped to the exact INSEE centre through an exact normalized station-name crosswalk to EEA station metadata. — Official source — https://files.data.gouv.fr/ineris/lcsqa/concentrations-de-polluants-atmospheriques-reglementes/temps-reel/2026/FR_E2_2026-07-15.csv
4. Independent ARCEP municipal count of premises eligible for the >=1 Gbit/s fixed advertised-speed class, divided by the ARCEP type=all municipal premises denominator. This is availability/eligibility, not adoption, measured speed, FTTH-only coverage or mobile coverage. — Official source — https://data.arcep.fr/fixe/maconnexioninternet/statistiques/2026_T1/commune/commune_debit.csv
5. INSEE RP2022 ACT1 — population active by type of activity, commune — Official source — https://www.insee.fr/fr/statistiques/fichier/8581605/TD_ACT1_2022_csv.zip
6. 2024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation. — Official source — https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AirQualityDownloadServiceEUMonitoringStations/MapServer
7. EEA air quality statistics — FR PM10 annual mean 2024 (station Place de l'Opéra) — Official source — https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'FR'%20AND%20AirPollutant%3D'PM10'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json
8. WMO Climatological Normals 1991-2020 — station PARIS-MONTSOURIS — Official source — https://www.ncei.noaa.gov/data/oceans/archive/arc0216/0253808/1.1/data/0-data/Region-6-WMO-Normals-9120/France/CSV/PARIS_MONTSOURIS_07156.csv
9. France city identity collection — Official source — https://immigrationdb.com/methodology/
10. Global Cost of Living — Kaggle snapshot v2 — Independent source — https://www.kaggle.com/datasets/mvieira101/global-cost-of-living
11. A-ccepted source for city area and derived population density — Official source — https://www.insee.fr/fr/statistiques/fichier/2521169/base_cc_comparateur_csv.zip

## Cite

ImmigrationDB. "Boulogne-Billancourt, France." Snapshot approved-static-bb6d69cd3c074ae2, last verified 2026-08-01. https://immigrationdb.com/cities/fr/boulogne-billancourt/

Reuse requires the direct source URL, the observation date and a link back to the ImmigrationDB page: https://immigrationdb.com/about/copyright/

## Data

- HTML: https://immigrationdb.com/cities/fr/boulogne-billancourt/
- JSON: https://immigrationdb.com/data/cities/fr/boulogne-billancourt.json
- Markdown: https://immigrationdb.com/data/cities/fr/boulogne-billancourt.md
- MCP resource: immigrationdb://city/fr/boulogne-billancourt
- Metric dictionary: https://immigrationdb.com/data/metrics.json
- All published city facts, one row each: https://immigrationdb.com/data/facts.ndjson.gz
- Release catalog: https://immigrationdb.com/data/catalog.json