Question: how many gallons of water does the average person drink?
Answer: Now I drink water almost exclusively, and new industry data says there's nothing special about that sort of sea change. Americans on average are down to 44 gallons of soda per year, and up to about 58 gallons of water. That's 7,242 ounces of water annually -- 20 ounces daily, which is 2.5 cups.