To provide a system capable of supplying information to be used for appropriately and easily setting a trade area in respect of sales improvement to a user.

In this trade area information management system, the trading states of respective regions recognized by a trading state recognition unit 110 are recognized as n-dimensional coordinates according to n kinds of standards regarding the trading by a coordinate recognition unit 120. Different trade areas are formed by a region specifying unit 130, and the regions of which coordinates have predetermined correlation of the adjoining regions. A map indicating specific regions by the region specifying unit 130 is supplied to a user terminal 200 by a map supply unit 140, and information regarding the coordinates is supplied to the user terminal by an information supply unit 150.