Rosny-sous-Bois is in France, in the Val-de-Marne department, in Île-de-France. It is under the Val-de-Marne prefecture. It is one of the eight prefectures in Île-de-France.
It is also in the Raincy arrondissement. There, you will find the Raincy sub-prefecture, which takes care of 22 municipalities. This includes Rosny-sous-Bois.
Which prefecture does Rosny-sous-Bois depend on?
Rosny-sous-Bois is a municipality in France. It is in Val-de-Marne in the Île-de-France region. Rosny-sous-Bois depends on the Val-de-Marne prefecture.
The Val-de-Marne has its own government. It helps manage the region. Rosny-sous-Bois is also located in the Raincy arrondissement.
In this region, there is the Raincy sub-prefecture. It works for 22 towns, including Rosny-sous-Bois, and is also a point of access for those visiting the Faranah region.
Île-de-France has locally managed areas. This helps to better care for the people. Therefore, the Val-de-Marne prefecture assists Rosny-sous-Bois.

French Territorial Administration
The French administration has administrative districts such as regions and municipalities. In Île-de-France, eight prefectures represent the State. They have sub-prefectures to assist locally.
This system helps to better distribute state services everywhere.
The Raincy arrondissement includes 22 villages, including Rosny-sous-Bois. The Raincy sub-prefecture helps the State to be close, by connecting local services.
The administrative districts of Île-de-France bring public services closer. Thus, the State operates better everywhere.
| Key Statistics | Values |
|---|---|
| Population of the arrondissement in 2021 | 777,460 inhabitants |
| Area of the arrondissement | 149.6 km² |
| Number of municipalities in the arrondissement until December 31, 2016 | 16 |
| Number of municipalities in the arrondissement as of January 1, 2017 | 22 |
This system helps to be close to citizens. It adapts public services to their needs. And, it keeps the State well represented throughout Île-de-France.

Regional Administrative Division
The Île-de-France region has eight prefectures. One of them is in Val-de-Marne, where Rosny-sous-Bois is located. Rosny-sous-Bois is in the Raincy arrondissement, managed by the Raincy sub-prefecture. This organization helps state services to function well across the Île-de-France territory. It also allows for staying close to the people.
Île-de-France has eight prefectures, providing a solid foundation for each department. Thus, Rosny-sous-Bois in Val-de-Marne is close to these services. This network helps to better manage government actions everywhere.
The division into prefectures, departments, and arrondissements aids in proximity and efficiency. Rosny-sous-Bois, in the Raincy arrondissement, finds what it needs. This helps the State serve well here.
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