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Hi Hans, Unfortunately IP addresses are not great on a desktop pc, not always but sometimes our Internet Service Provider seems to play havoc with our actual location. However on mobile it is usually a lot more reliable, so make sure your site is mobile friendly! As long as you have all your data set up and Google+ and the likes linked then your local listings will work correctly,  I wouldn't recommend targeting a popular IP location as it is not your true location. Keeping your town/city in your tagging will help for local searches for those who include there location in their searches. But if your client's ISPs have their IP address located wrongly, I am afraid this is something you cannot compensate for. Kind Regards, Jimmy

Hi Robert, Thanks so much for your response! You really have been of great help. I'll try to arrange things the way you proposed. Great to see people are willing to help each other here Cheers, Hans