Postal Code 78600
Le Mesnil-le-Roi +1 · Yvelines, Île-de-France
78600 is the postal code of Le Mesnil-le-Roi, Maisons-Laffitte in Yvelines, Île-de-France, France.
- Postal Code
- 78600
- Department
- Yvelines
- Region
- Île-de-France
- Country
- France
2 places with postal code 78600
| Place | Sub-district | Department | Location |
|---|---|---|---|
| Le Mesnil-le-Roi | Saint-Germain-en-Laye | Yvelines | 48.938, 2.126 |
| Maisons-Laffitte | Saint-Germain-en-Laye | Yvelines | 48.953, 2.145 |
Near Paris
The nearest major city is Paris, about 19 km away.
Nearby postal codes
Frequently asked questions
Which places use postal code 78600?
Le Mesnil-le-Roi, Maisons-Laffitte.
Which department and region is 78600 in?
Yvelines, Île-de-France, France.
What is the nearest major city to 78600?
Paris, about 19 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.