MANKATO - July 25, 2012 - (KMKO) --Gas price in Mankato and other surrounding towns like St. Peter are now up to $3.65 a gallon. In Minnesota the average price per gallon is $3.67 while the average price in the U.S. is $3.50 gallon. The lowest price in Minnesota can be found in Sherburne and Trimont at $3.39 a gallon while the highest price is in Minnetonka at $3.89 a gallon. Last year you were paying on average $3.74 a gallon in Minnesota.