Costco Gas Prices in Rancho Cucamonga, California
Rancho Cucamonga · Warehouse #678
11800 4TH ST, Rancho Cucamonga, California 91730-6129
Prices updated: July 22, 2026 at 4:00 PM
Regular
$5.099
PRICE PER GALLON
Press
Premium
$5.599
PRICE PER GALLON
Press
Current gas prices at Costco #678
This Costco gas station is located at 11800 4TH ST in Rancho Cucamonga, California. The latest reported fuel prices are regular at $5.099/gal, premium at $5.599/gal. Prices were last updated on July 22, 2026 at 4:00 PM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$5.099+0.400 (8.5%)
Premium
$5.599+0.500 (9.8%)
DateRegPrem
Jul 22, 4:00 PM$5.099$5.599
Jul 21, 10:00 PM$5.059$5.599
Jul 21, 4:00 PM$5.059$5.499
Jul 21, 12:00 AM—$5.499
Jul 20, 11:00 PM$4.999$5.399
Jul 20, 5:00 PM$4.959$5.359
Jul 18, 3:00 PM$4.899$5.359
Jul 17, 10:00 PM$4.859$5.259
Jul 17, 5:00 PM$4.859$5.199
Jul 16, 12:00 AM$4.799$5.159
Jul 14, 9:00 PM$4.759$5.159
Jul 13, 6:00 PM$4.699$5.099
Jul 12, 5:00 PM$4.599$4.999
Jul 10, 5:00 PM$4.699$5.099
Jul 9, 6:00 AM—$5.099
Jul 9, 5:00 AM$4.699$5.099
Jul 8, 9:00 PM$4.699$4.999
Jul 8, 4:00 PM$4.599$4.899
Jul 7, 5:00 PM$4.499$4.859
Jul 6, 4:00 PM$4.499$4.899
Jul 5, 6:00 PM$4.599$4.999
Jul 4, 8:00 PM$4.539$4.959
Jul 3, 4:00 PM$4.499$4.929
Jul 2, 5:00 PM$4.539$4.959
Jun 30, 5:00 PM$4.559$4.989
Jun 29, 5:00 PM$4.699$4.999
Jun 28, 4:00 PM$4.699$5.099
Jun 25, 9:00 AM—$5.099
Jun 25, 8:00 AM$4.699$5.099