A method of location information in a mobile device capable of improving position accuracy of the mobile device using a database (DB) of peripheral auxiliary data when GPS and navigation are performed in the mobile device, and an apparatus thereof is provided. The method of providing location information in a mobile device includes acquiring initial location information of the mobile device when a location based service is executed, transmitting the acquired initial location information to a server, receiving auxiliary data corresponding to the initial location information from the server, classifying satellites to be used to determine a location with reference to the auxiliary data, and determining the location based on a satellite signal of a satellite having a high weight through the classification of the satellites.