The present application is directed to systems and methods for associating a geographic location with an IP address. Generally, a plurality of localized search queries of search queries received at an Internet search engine are determined, where each of the plurality of localized search queries is associated with a location. A geo tag is associated with each of the plurality of localized search queries and a subset of the plurality of localized search queries that are associated with a first IP address is identified. The subset of the plurality of localized search queries is clustered into a spatial cluster including localized search queries associated with geo tags located within a defined distance of a geo tag associated with at least one other localized search query of the cluster. A geographic location associated with a geographic center of the cluster is then associated with the first IP address.