The average national price of gas is $2.21 per gallon for unleaded. Missouri comes in below average at $1.99. In the Lake Area, the average is even a little lower. The average is $1.88 in Osage Beach, $1.95 in Lake Ozark, and $1.89 in Camdenton. On the west side, the average is $1.86 in Sunrise Beach and $1.98 in Gravois Mills.