Costco Gas Prices in St. George, UT
1 Costco fuel center in St. George · all 1 sell diesel
St. George Avg Regular
$4.329
per gallon
St. George Avg Premium
$4.949
per gallon
St. George Avg Diesel
$5.499
per gallon
St. George regular is$0.137abovethe Utah average ($4.192)
vs U.S. average$0.139above($4.190)
Premium runs$0.620above regular on average
St. George, Utah has 1 Costco fuel center serving members in the area. Across St. George, regular gas averages $4.329, premium runs about $0.620 higher at $4.949, and diesel sits at $5.499. That's about $0.137 above the Utah statewide average of $4.192. Across St. George, regular pump prices have climbed about $0.170 over the past month, from $4.159 a month ago. Premium has climbed about $0.290 and diesel has climbed about $0.320 over the same period.