Postal Code 78401 CEDEX

Chatou · Yvelines, Île-de-France

78401 CEDEX is the postal code of Chatou in Yvelines, Île-de-France, France.

Postal Code: 78401 CEDEX
Department: Yvelines
Region: Île-de-France
Country: France

Place with postal code 78401 CEDEX

Place	Sub-district	Department	Location
Chatou	Saint-Germain-en-Laye	Yvelines	48.890, 2.159

Near Paris

The nearest major city is Paris, about 14 km away.

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Nearby postal codes

All postal codes in Yvelines →

Frequently asked questions

Which places use postal code 78401 CEDEX?

Chatou.

Which department and region is 78401 CEDEX in?

Yvelines, Île-de-France, France.

What is the nearest major city to 78401 CEDEX?

Paris, about 14 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.