Eggs aren't refrigerated in supermarkets, but even unwashed eggs keep better if refrigerated, so most people refrigerate them at home. Supermarkets have enough turnover that it's not worth the cost.
Norway, and none of the supermarkets or similar shops here have unrefrigerated eggs. Then again, our egg manufacturers have also paid for ads saying their eggs last a lot longer than expiration date they're mandated by EU to put on the boxes.