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Grande-Synthe
City in Hauts-de-France, France
Overview
Grande-Synthe is a small city in the Hauts-de-France region, situated on the outskirts of Dunkirk. Known for its green spaces, family-friendly vibe, and proximity to the North Sea coast, it offers a laid-back French suburban experience.
Geographic Context
Jurisdiction
France
Metropolitan Region
Hauts-de-France
Population
20,347
Time Zone
Europe/Paris
Coordinates
51.02°, 2.30°
Key Metrics
Safety Score
60
Female Safety
55
LGBTQ+ Safety
55
Traffic Safety
68
Food Safety
85
Monthly Cost
$1,609
Local Cost
$972
Local Income
$1,750
Cashless
75
English
40
Temperature
10.8°C
Summer Avg
16.9°C
Winter Avg
4.7°C
Record High
34.4°C
Record Low
-7.7°C
Humidity
85%
Precipitation
755 mm
Internet Speed
428 Mbps
Upload
285 Mbps
Latency
8 ms
City Vibrancy
—
Coworking
0
Cafes
0
Nightlife
0
Parks
0
Transport
0
Walk Score
0
Footways
—
Airport
CQF
Distance
25 km
Explore
Neighborhoods
PartialCoverage is incomplete — additional neighborhoods are being added as more source data is processed.
Coverage is incomplete — more neighborhoods are being added.
View all 3 neighborhoodsFrequently Asked Questions
Data sources
Source-backed data
NASA POWER - Climate normals and monthly weather measurements rendered as city weather metrics. Updated 2026-03-22.
World Air Quality Index - Latest available city-level air quality station measurement. Updated 2025-12-05.
Ookla Open Data - Internet speed aggregates for 2024Q3 from 112 tests. Updated 2025-12-05.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Updated 2025-12-06.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Updated 2025-12-05.
Oyster List city price model - City price estimates calibrated from local price surveys and jurisdiction-level cost signals. Updated 2026-01-14.
Overture Maps and OpenStreetMap - 3 source-backed neighborhood entities are available for this city. Updated 2026-03-23.
Estimated data
Oyster List AI-assisted estimates - Safety, lifestyle, income, and practical scores are model-assisted estimates derived from source-backed country and city signals. Confidence 68/100.
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