1. A computer system for providing real estate data to a user on a mobile device having a touch screen user interface, the system comprising: a mobile client device having a touch screen display, a processor, a non-transitory memory and instructions stored in the memory in the form of an app, the instructions, when executed by the processor, cause the client device to: receive a query from a user; transmit the query to a server, the server having a database of real estate data stored in the form of property records; receive, from the server, data related to property records that satisfy the query; receive map data for a geographic region corresponding to the property records; create formatted data to be displayed on the touch screen user interface including receiving information corresponding to a set of the property records each having an associated geographic location, determining the size of a map viewing area to be viewed on the touch screen user interface, determining a size of at least one graphical indicator, determining a geographic region of the map viewing area, determining plural geographic sub-regions within the geographic region based on the size of a map viewing area, the size of the at least one graphical indicator, and the geographic region, and designating a maximum number n of-graphical indicators in a given geographic subregion to be displayed on the touch screen user interface for each of plural subsets of properties in the given geographic subregion; and display the formatted data in a map window on the touch screen user interface, including displaying n graphical indicators on a geographic map in each of the geographic subregions to thereby limit the number of graphical indicators displayed on the touch screen user interface for at least a subset of the properties corresponding to the property records satisfying the query.