Postal Code 78280
Guyancourt · Yvelines, Île-de-France
78280 is the postal code of Guyancourt in Yvelines, Île-de-France, France.
- Postal Code
- 78280
- Department
- Yvelines
- Region
- Île-de-France
- Country
- France
Place with postal code 78280
| Place | Sub-district | Department | Location |
|---|---|---|---|
| Guyancourt | Versailles | Yvelines | 48.773, 2.074 |
Near Paris
The nearest major city is Paris, about 22 km away.
Nearby postal codes
Frequently asked questions
Which places use postal code 78280?
Guyancourt.
Which department and region is 78280 in?
Yvelines, Île-de-France, France.
What is the nearest major city to 78280?
Paris, about 22 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.