In today's world more geographic information is being collected about us, such as where we live, where the clinic we visited is located, and where we work. Web sites are also collecting more geographic information about their users. This location information makes it easier to identify individuals, which can raise privacy concerns when location is coupled with basic demographics and sensitive health information. Individuals living in small areas tend to be more easily identifiable because they are unique on their local demographics. A new research study measures how easy it is to determine the identity of individuals using their geographical information. A new research study measures how easy it is to determine the identity of individuals using their geographical information.