Hey there!
According to what I've heard, surfing in Southern California is the thing to do when you're not doing other Californian things. This is probably because there are so many beaches and the weather is perfect for being in the water and hanging out outside.
However, Alaska is much different. It's not nearly as close to the equator, making it very cold and makes the water often too icy to even tolerate. I doubt that anyone would want to buy a surfboard in Alaska unless they were going to use at wall decor or something.
So, the demand for surfboards in Southern California will definitely be more than that in Alaska.
Hope this helped you out! :-)
