Costco San Marcos Gas Prices – Center Drive
- Regular · today
- $6.199▲ +$0.040
- Premium · today
- $6.599
USD per gallon · Last updated September 30, 2026 · This station does not sell diesel
725 Center Drive, San Marcos, CA 92069-3536 · Open in Maps ↗
30-day range
where today sits- Regular$6.199 today · avg $5.809$5.459 low$6.199 high
- Premium$6.599 today · avg $6.215$5.859 low$6.599 high
Price history at San Marcos
Last 30 days · USD per gallonView data as table
| Date | Regular | Premium |
|---|---|---|
| Sep 1 | $5.459 | $5.859 |
| Sep 2 | $5.459 | $5.859 |
| Sep 3 | $5.459 | $5.859 |
| Sep 4 | $5.559 | $5.959 |
| Sep 5 | $5.559 | $5.959 |
| Sep 6 | $5.559 | $5.999 |
| Sep 7 | $5.599 | $5.999 |
| Sep 8 | $5.599 | $5.999 |
| Sep 9 | $5.599 | $6.099 |
| Sep 10 | $5.699 | $6.099 |
| Sep 11 | $5.699 | $6.099 |
| Sep 12 | $5.799 | $6.199 |
| Sep 13 | $5.799 | $6.199 |
| Sep 14 | $5.799 | $6.199 |
| Sep 15 | $5.799 | $6.199 |
| Sep 16 | $5.799 | $6.199 |
| Sep 17 | $5.799 | $6.199 |
| Sep 18 | — | — |
| Sep 19 | $5.899 | $6.299 |
| Sep 20 | $5.899 | $6.299 |
| Sep 21 | $5.899 | $6.299 |
| Sep 22 | $5.899 | $6.299 |
| Sep 23 | $5.899 | $6.299 |
| Sep 24 | $5.899 | $6.299 |
| Sep 25 | $6.099 | $6.499 |
| Sep 26 | $6.159 | $6.559 |
| Sep 27 | $6.199 | $6.599 |
| Sep 28 | $6.199 | $6.599 |
| Sep 29 | $6.159 | $6.599 |
| Sep 30 | $6.199 | $6.599 |
Last updated September 30, 2026. Prices are collected once daily and can lag same-day changes at the pump.
Today’s price in context
At $6.199 for Regular, San Marcos is tied for the 17th most expensive of 128 Costco gas stations in California today, $0.157 above the California average of $6.042.
Santee, 21.9 mi away, is $0.100 cheaper.
- vs the US average
- $1.593 above, at $4.606
- Premium over Regular
- $0.400 — the California median is $0.400
- Over the last 30 days
- up $0.740
- Days the price changed
- 10 of 29 reported days
- Cheapest day in the window
- September 3, 2026, at $5.459
- 15-gallon fill
- $92.98, $11.10 more than at the 30-day low
- Nearest cheaper station
- Santee — 21.9 mi
San Marcos is located at 725 Center Drive, San Marcos, CA 92069-3536, 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
San Marcos 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.
San Marcos 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 San Marcos
- 1VistaVista, CA · 9.5 mi$6.259Regular
- 2Carmel MountainSan Diego, CA · 10.6 mi$6.259Regular
- 3CarlsbadCarlsbad, CA · 11.1 mi$6.199Regular
- 4PowayPoway, CA · 14.7 mi$6.299Regular
- 5SanteeSantee, CA · 21.9 mi$6.099Regular
Distances are straight-line. Prices across the border are shown in that country’s units (¢ per litre).
Cities near San Marcos
- Costco gas prices Vista · CA · 9 mi$6.259
- Costco gas prices Carlsbad · CA · 11 mi$6.199
- Costco gas prices Poway · CA · 15 mi$6.299
- Costco gas prices San Diego · CA · 21 mi$6.104
- Costco gas prices Santee · CA · 22 mi$6.099
- Costco gas prices La Mesa · CA · 26 mi$5.999
- Costco gas prices Temecula · CA · 27 mi$5.999
- Costco gas prices Murrieta · CA · 32 mi$5.999
At this location
- Warehouse opened
- July 2011
- Warehouse phone
- (760) 871-6867
- Pumps open before the warehouse
- 4 hours and 30 minutes on weekdays
The pumps open at 5:30 a.m. on weekdays, ahead of the 6 a.m. most Costco gas stations in the US open.
Also at this warehouse: a food court, a pharmacy, an optical department and a tire center.
Costco publishes one number per warehouse; there is no separate line for the gas station.
Frequently asked questions
How much is gas at Costco San Marcos today?
As of the September 30, 2026 reading: Regular $6.199 and Premium $6.599 per gallon. Prices are collected once a day, so the pump can differ.
What time does the Costco San Marcos 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 San Marcos gas station sell diesel?
No — this station sells Regular and Premium, and has reported no diesel price in the last 30 days.
Is Costco San Marcos cheaper than the average Costco station in California?
No — at $6.199, Regular here is $0.157 above the California Costco average of $6.042.
Where is the Costco San Marcos gas station?
At 725 Center Drive, San Marcos, CA 92069-3536. 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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