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Saint-Jean-les-Deux-Jumeaux
City in Île-de-France, France
Overview
Saint-Jean-les-Deux-Jumeaux is a picturesque village along the Marne river, offering classic French countryside charm. It is known for its tranquil atmosphere, scenic walks, and proximity to the Grand Morin valley. The tightly-knit community and quiet streets make it perfect for relaxation and local exploration.
Geographic Context
Jurisdiction
France
Metropolitan Region
Île-de-France
Population
1,294
Time Zone
Europe/Paris
Coordinates
48.95°, 3.02°
Key Metrics
Safety Score · estimate
87
Female Safety
80
LGBTQ+ Safety
78
Traffic Safety
75
Food Safety
95
Monthly Cost · estimate
$1,700
Local Cost
$1,150
Local Income
$1,800
Cashless
60
English
35
Temperature
10.6°C
Summer Avg
18.3°C
Winter Avg
3.0°C
Record High
40.3°C
Record Low
-12.7°C
Humidity
83%
Precipitation
708 mm
Internet Speed
337 Mbps
Upload
270 Mbps
Latency
7 ms
City Vibrancy
1
Coworking
0
Cafes
1
Nightlife
0
Parks
0
Transport
99
Walk Score
99
Footways
197.0
Airport
CDG
Distance
34 km
Explore
Data 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 2025-12-08.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Record updated 2025-12-06.
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: 73/100; this is not a measured accuracy score. Model: derived+gpt-4.1. Record updated 2026-03-26.
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