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Boulogne-Billancourt
City in Île-de-France, France
Overview
Boulogne-Billancourt is a dynamic suburb just west of Paris, blending historic charm with modern living. It features tranquil parks, cultural attractions, and an active local life, making it popular for families and professionals. The city offers easy metro access to central Paris while maintaining its own distinct vibe.
Geographic Context
Jurisdiction
France
Metropolitan Region
Île-de-France
Population
120,205
Time Zone
Europe/Paris
Coordinates
48.84°, 2.24°
Key Metrics
Safety Score · estimate
82
Female Safety
83
LGBTQ+ Safety
86
Traffic Safety
77
Food Safety
98
Monthly Cost · estimate
$2,775
Local Cost
$1,900
Local Income
$2,550
Cashless
87
English
58
Temperature
10.9°C
Summer Avg
18.5°C
Winter Avg
3.4°C
Record High
39.6°C
Record Low
-12.5°C
Humidity
81%
Precipitation
661 mm
Internet Speed
378 Mbps
Upload
261 Mbps
Latency
6 ms
City Vibrancy
178
Coworking
4
Cafes
51
Nightlife
27
Parks
96
Transport
0
Walk Score
0
Footways
—
Airport
VIY
Distance
8 km
Explore
Neighborhoods
Mapped8 neighborhoods sourced from Overture Maps and OpenStreetMap.
View all 8 neighborhoodsData sources
Source-backed data
World Air Quality Index - Latest available city-level air quality station measurement. Record updated 2025-12-05.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Record updated 2025-12-06.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Record updated 2025-12-05.
Overture Maps and OpenStreetMap - 8 source-backed neighborhood entities are available for this city. Record updated 2026-03-21.
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-22.
Oyster List city price estimates - Price origins are unverified. Available generation methods include AI estimates; stored records do not identify a survey, observation period, or model for each price. Record updated 2026-01-14.
Oyster List AI-assisted estimates - Safety, lifestyle, income, and practical scores include model-assisted estimates. Stored records do not identify supporting observations for each score. Model-reported confidence: 85/100; this is not a measured accuracy score. Model: derived+gpt-4.1. Record updated 2026-03-26.
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