Stains is a commune located in the department of Seine-et-Marne in the Île-de-France region of northern France. It is situated in the eastern part of the region, positioned within the historical territory of the Brie province.
The town serves as a local residential and commercial hub within the rural landscape of the Seine-et-Marne department. While it maintains its character as a French commune, it is part of the broader metropolitan influence of the Paris basin.