We don't provide user statistics or demographics for specific locations, regions, countries, etc.

We can tell you that foursquare has over 10 million users all around the world. Chances are, many people have already checked into your location. By claiming your venue and creating an offer, you can reward someone coming in for the first time on foursquare as well as those who visit frequently. All sorts of users make up the foursquare user base and span all geographies and demographics.