I have a client who serves a local market and who has had trouble in the past with people out of her service area clicking on ads. She asked how accurate the geo-targeting option is.  I know it's not possible to be completely accurate resolving the location of IP addresses, but was wondering if there are any recent statistics out there regarding how accurate or inaccurate geo-targeting is.  I did some quick searches but did not see any current numbers. Many Thanks!