If you draw lines between the locations of people who have left karma comments, this is what you get (circles mean people in the same location; thick lines mean multiple people):
(This is only for people who have been online in the last 9 months, but includes cuddles before then).
The locations aren't always accurate (since some people just give a state or even a country instead of a city name as their location), but here are some stats for distance between cuddlers:
16% are at the same location
11% are within 10 miles
14% are 10-20 miles away
22% are 20-50 miles away
8% are 50-100 miles away
7% are 100-200 miles away
7% are 200-500 miles away
15% are 500 miles+
The furthest is @OzVisitor and @AlexBabyBoo23: 9700 miles from Australia to the US (there is one further between Western Australia and the US too, but it doesn't sound like they've actually cuddled).
Related thread: How far would you travel to visit a cuddle companion?