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Lagny-sur-Marne
City in Île-de-France, France
Overview
Lagny-sur-Marne is a delightful riverside town east of Paris, blending medieval heritage with small-town charm. Its cobbled streets, busy market, and scenic views of the Marne River make it a peaceful base close to the capital. The city balances local authenticity with modern amenities, serving as a gateway both to Paris and to the countryside of Île-de-France.
Geographic Context
Jurisdiction
France
Metropolitan Region
Île-de-France
Population
21,433
Time Zone
Europe/Paris
Coordinates
48.87°, 2.72°
Key Metrics
Safety Score
82
Female Safety
78
LGBTQ+ Safety
80
Traffic Safety
85
Food Safety
95
Monthly Cost
$2,125
Local Cost
$1,400
Local Income
$2,400
Cashless
87
English
55
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
623 Mbps
Upload
525 Mbps
Latency
4 ms
City Vibrancy
36
Coworking
0
Cafes
7
Nightlife
8
Parks
21
Transport
0
Walk Score
0
Footways
—
Airport
CDG
Distance
19 km
Explore
Neighborhoods
EstimatedNeighborhood highlights with vibe, safety, and cost profiles.
View featured 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 1 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.
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 78/100.
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