Costco Rancho Cucamonga Gas Prices – 4th St
- Regular · today
- $4.959
- Premium · today
- $5.299
USD per gallon · Last updated November 13, 2026 · This station does not sell diesel
11800 4th St, Rancho Cucamonga, CA 91730-6129 · Open in Maps ↗
30-day range
where today sits- Regular$4.959 today · avg $5.293$4.959 low$5.659 high
- Premium$5.299 today · avg $5.719$5.299 low$6.059 high
Price history at Rancho Cucamonga
Last 30 days · USD per gallonRegular: $5.659 on Oct 15 to $4.959 on Nov 13, low $4.959, high $5.659. Premium: $6.059 on Oct 15 to $5.299 on Nov 13, low $5.299, high $6.059.
Last updated November 13, 2026. Prices are collected once daily and can lag same-day changes at the pump.
Today’s price in context
At $4.959 for Regular, Rancho Cucamonga is tied for the 47th cheapest of 131 Costco gas stations in California today, $0.060 below the California average of $5.019.
Eastvale, 5.7 mi away, is $0.160 cheaper.
- vs the US average
- $1.096 above, at $3.863
- Premium over Regular
- $0.340 — the California median is $0.460
- Regular over the last 30 days
- down $0.700
- Days the price changed
- 18 of 30 reported days
- Latest day at the 30-day low
- today, at $4.959
- 15-gallon fill
- $74.38 — the cheapest it has been in 30 days
- Nearest cheaper station
- Eastvale — 5.7 mi
Rancho Cucamonga is located at 11800 4th St, Rancho Cucamonga, CA 91730-6129, in California. The gas station sits in the warehouse parking lot and is open to Costco members, selling Regular and Premium — this location does not sell diesel. Gas station hours are 5:30 a.m. – 10 p.m. on weekdays, 6 a.m. – 8:30 p.m. on Saturdays and 6 a.m. – 7:30 p.m. on Sundays, in local time.
Station details
Rancho Cucamonga Gas station hours
- Mon–Fri
- 5:30 a.m. – 10 p.m.
- Saturday
- 6 a.m. – 8:30 p.m.
- Sunday
- 6 a.m. – 7:30 p.m.
Rancho Cucamonga Warehouse hours
- Mon–Fri
- 10 a.m. – 8:30 p.m.
- Saturday
- 9:30 a.m. – 7 p.m.
- Sunday
- 10 a.m. – 6 p.m.
Costco gas near Rancho Cucamonga
- 1Ontario Business CenterOntario, CA · 1.8 mi$4.959Regular
- 2EastvaleEastvale, CA · 5.7 mi$4.799Regular
- 3FontanaFontana, CA · 7.3 mi$4.699Regular
- 4MontclairMontclair, CA · 8.2 mi$4.659Regular
- 5Chino HillsChino Hills, CA · 12.0 mi$4.799Regular
Distances are straight-line.
Cities near Rancho Cucamonga
- Costco gas prices Ontario · CA · 2 mi$4.959
- Costco gas prices Eastvale · CA · 6 mi$4.799
- Costco gas prices Fontana · CA · 7 mi$4.699
- Costco gas prices Montclair · CA · 8 mi$4.659
- Costco gas prices Chino Hills · CA · 12 mi$4.799
- Costco gas prices Corona · CA · 13 mi$4.999
- Costco gas prices San Dimas · CA · 16 mi$5.099
- Costco gas prices San Bernardino · CA · 16 mi$4.899
At this location
- Warehouse opened
- October 1992
- Warehouse phone
- (909) 581-1703
- Pumps open early
- 4 hours and 30 minutes before the warehouse on weekdays
The pumps open at 5:30 a.m. on weekdays, earlier than the 6 a.m. opening at most Costco gas stations in the US.
Also at this warehouse: a food court, a pharmacy, an optical department, a hearing aid center and a tire center.
Frequently asked questions
How much is gas at Costco Rancho Cucamonga today?
As of November 13, 2026: Regular $4.959 and Premium $5.299 per gallon. Prices are collected once a day, so the pump can differ.
What time does the Costco Rancho Cucamonga gas station open?
The pumps are open 5:30 a.m. – 10 p.m. weekdays, 6 a.m. – 8:30 p.m. Saturdays and 6 a.m. – 7:30 p.m. Sundays, in local time. The pumps open 4 hours and 30 minutes before the warehouse on weekdays.
Does the Costco Rancho Cucamonga gas station sell diesel?
No — this station sells Regular and Premium, and has reported no diesel price in the last 30 days.
Is Costco Rancho Cucamonga cheaper than the average Costco station in California?
Yes — at $4.959, Regular here is $0.060 below the average Costco price in California, $5.019.
Where is the Costco Rancho Cucamonga gas station?
At 11800 4th St, Rancho Cucamonga, CA 91730-6129. It sits in the Costco warehouse parking lot and is open to members only.
Do you need a Costco membership to buy gas?
Yes — a Gold Star, Executive or Business membership card has to be scanned at the pump before it will dispense, though a Costco Shop Card also works for non-members.
What payment methods does the Costco gas station accept?
Visa, PIN debit and the Costco Shop Card; US Costco fuel pumps take no cash and no Mastercard, American Express or Discover.
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