Costco Gas Prices in Saint Louis, Missouri
S St Louis · Warehouse #368
4200 RUSTY RD, Saint Louis, Missouri 63128-1973
Prices updated: July 21, 2026 at 7:00 AM
Regular
$3.559
PRICE PER GALLON
Press
Premium
$4.199
PRICE PER GALLON
Press
Current gas prices at Costco #368
This Costco gas station is located at 4200 RUSTY RD in Saint Louis, Missouri. The latest reported fuel prices are regular at $3.559/gal, premium at $4.199/gal. Prices were last updated on July 21, 2026 at 7:00 AM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$3.559−0.020 (0.6%)
Premium
$4.199+0.120 (2.9%)
DateRegPrem
Jul 21, 7:00 AM$3.559$4.199
Jul 19, 3:00 PM$3.499$4.149
Jul 18, 2:00 PM$3.459$4.099
Jul 17, 8:00 PM—$4.099
Jul 17, 7:00 PM$3.459$4.099
Jul 17, 3:00 PM$3.399$4.099
Jul 16, 8:00 PM$3.369$4.079
Jul 16, 3:00 PM$3.379$4.079
Jul 14, 3:00 PM—$4.079
Jul 14, 2:00 PM$3.379$4.079
Jul 12, 3:00 PM$3.399$4.049
Jul 9, 10:00 PM$3.399$3.999
Jul 7, 11:00 PM$3.379$3.999
Jul 7, 3:00 PM$3.399$3.999
Jul 5, 4:00 PM$3.399$4.049
Jul 4, 9:00 PM$3.399$3.999
Jul 3, 3:00 PM$3.439$3.979
Jul 1, 2:00 PM$3.459$3.979
Jun 30, 2:00 PM$3.469$3.989
Jun 29, 2:00 PM$3.479$3.999
Jun 24, 1:00 PM$3.479$4.039
Jun 23, 1:00 PM$3.559$4.069
Jun 23, 6:00 AM—$4.069
Jun 23, 5:00 AM$3.559$4.069
Jun 21, 2:00 PM$3.579$4.079