Some embodiments provide a system for generating price maps. The system includes a data module for retrieving (1) data related to locations of real estate properties and (2) data related to prices of the real estate properties. The system also includes a contour generator for generating a contour map that includes several contours based on the data related to the locations of the real estate properties and the data related to the prices of the real estate properties. Each contour represents a set of real estate properties having prices within a defined range of values.