About
Seine-et-Oise was a department in the Île-de-France region of north-central France. It existed from 1790 until 1968, and its territory surrounded Paris together with the departments of Seine and Seine-et-Marne. Today the name survives mainly in history books, maps and local memory, since the department was abolished in 1968.
A former department around Paris
The department took in much of the western and southern suburbs of the capital. Its land therefore lay on the edge of the French metropolis, between the city's dense core and the more rural countryside further out. A visitor who knows the area by its present-day departments will recognise the same ground, now divided among the newer administrative units.
What replaced it
- Yvelines, to the west
- Essonne, to the south
- Val-d'Oise, to the north
- Parts of Hauts-de-Seine, close to Paris
Because the reorganisation split the old territory into four units, there is no single place today that goes by the name Seine-et-Oise. Anyone searching for it will find references to these successor departments instead.
Planning a visit
Seine-et-Oise is best approached as a way of understanding the Paris suburbs and their history rather than as a destination with its own sights to tick off. Those interested in its story can trace it through the regions that inherited its land, and combine that with a trip into Paris, which lies at its heart. For practical plans, check the current departments and their own visitor information.
