Costco San Marcos Business Centre Gas Prices – San Marcos, CA

Regular · today: $5.299▲ +$0.040
Premium · today: $5.759

USD per gallon · Last updated November 13, 2026 · This station does not sell diesel

150 S. Bent Ave, San Marcos, CA 92078-1202 · Open in Maps ↗

30-day range

where today sits

Regular$5.299 today · avg $5.294
$5.259 low$5.359 high
Premium$5.759 today · avg $5.759
$5.759 low$5.759 high

Price history at San Marcos Business Centre

Last 30 days · USD per gallon

RegularPremium

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 $5.299 for Regular, San Marcos Business Centre is tied for the 6th most expensive of 131 Costco gas stations in California today, $0.280 above the California average of $5.019.

Vista, 6.4 mi away, is $0.040 cheaper.

vs the US average: $1.436 above, at $3.863
Premium over Regular: $0.460 — the California median is $0.460
Regular over the last 30 days: down $0.060
Days the price changed: 2 of 4 reported days
Latest day at the 30-day low: November 12, 2026, at $5.259
15-gallon fill: $79.48, $0.60 more than at the 30-day low
Nearest cheaper station: Vista — 6.4 mi

San Marcos Business Centre is located at 150 S. Bent Ave, San Marcos, CA 92078-1202, 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 6 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: 6 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: 7 a.m. – 6 p.m.
Saturday: 7 a.m. – 6 p.m.
Sunday: 7 a.m. – 6 p.m.

Costco gas near San Marcos Business Centre

Distances are straight-line.

Cities near San Marcos

Costco gas prices Vista · CA · 6 mi$5.259
Costco gas prices Carlsbad · CA · 8 mi$5.259
Costco gas prices Poway · CA · 16 mi$5.259
Costco gas prices San Diego · CA · 22 mi$5.229
Costco gas prices Santee · CA · 23 mi$5.199
Costco gas prices Temecula · CA · 27 mi$4.999
Costco gas prices La Mesa · CA · 27 mi$5.159
Costco gas prices Murrieta · CA · 32 mi$4.999

At this location

Warehouse opened: March 2022
Warehouse phone: (760) 410-5681
Pumps open early: 1 hour before the warehouse on weekdays

Frequently asked questions

How much is gas at Costco San Marcos Business Centre today?

As of November 13, 2026: Regular $5.299 and Premium $5.759 per gallon. Prices are collected once a day, so the pump can differ.

What time does the Costco San Marcos Business Centre gas station open?

The pumps are open 6 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 1 hour before the warehouse on weekdays.

Does the Costco San Marcos Business Centre 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 Business Centre cheaper than the average Costco station in California?

No — at $5.299, Regular here is $0.280 above the average Costco price in California, $5.019.

Where is the Costco San Marcos Business Centre gas station?

At 150 S. Bent Ave, San Marcos, CA 92078-1202. 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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