cost of 20 lb bag of ice
1 On average, a bag of ice will cost anywhere from as little as $1 for a 10-pound bag to as much as $6 for a 20-pound bag. 2  The cost of ice will depend on the amount in the bag and the store selling it. 3  A block of ice, which usually weighs around 50 pounds, can cost $20 to $35.