1. A computer-implemented method to provide selections that complete partial address information, the method comprising: receiving a request including the partial address information at a graphical user interface having a set of fields for geographic locations, wherein the partial address information completes less than all of the fields included in the set of fields; parsing the partial address information to determine missing portions of the partial address information; locating, in a compact data structure, offsets to address information corresponding to the missing portions, wherein the compact data structure organizes geographic location information and includes a header section, a trailer section and a body section, wherein the header section provides metadata to a plurality of applications, the trailer section specifies at least the offsets allowing the plurality of applications to access the data structure and a version allowing one or more data sources to update the data structure, and the body section having the address information represented by a plurality of offset count pairs, wherein the offsets to address information specifies the location in the compact data structure where the address information corresponding to the missing portions of the partial address information from the request is stored, and wherein the compact data structure is updated periodically to update the version and the offsets to address information; and generating, for selective display, a set of options that includes the address information corresponding to the missing portions that complete a subset of the set of fields in the graphical user interface and restricts the set of options to a number of potential addresses that complete the partial address information.