Costco Gas Prices in St. George, UT
1 Costco fuel center in St. George · all 1 sell diesel
St. George Avg Regular
$3.799
per gallon
St. George Avg Premium
$4.399
per gallon
St. George Avg Diesel
$4.559
per gallon
St. George regular is$0.07abovethe Utah average ($3.728)
vs U.S. average$0.13below($3.933)
Premium runs$0.60above regular on average