Costco Fullerton Gas Prices – Harbor Blvd
Today at the pump
Regular5.659▲ +$0.060
Premium5.959▲ +$0.060
USD per gallon · Last updated September 15, 2026 · This station does not sell diesel
900 S Harbor Blvd, Fullerton, CA 92832-3025 · Open in Maps ↗
30-day range
where today sits- Regular$5.659 today · avg $5.268$4.999 low$5.659 high
- Premium$5.959 today · avg $5.590$5.359 low$5.959 high
Price history at Fullerton
Last 30 days · USD per gallonRegularPremium
View data as table
| Date | Regular | Premium |
|---|---|---|
| Aug 17 | $4.999 | $5.359 |
| Aug 18 | $4.999 | $5.359 |
| Aug 19 | $5.059 | $5.359 |
| Aug 20 | $5.059 | $5.359 |
| Aug 21 | $5.059 | $5.359 |
| Aug 22 | $5.059 | $5.359 |
| Aug 23 | $5.069 | $5.399 |
| Aug 24 | $5.099 | $5.459 |
| Aug 25 | $5.099 | $5.459 |
| Aug 26 | $5.099 | $5.459 |
| Aug 27 | $5.129 | $5.479 |
| Aug 28 | $5.159 | $5.499 |
| Aug 29 | $5.199 | $5.499 |
| Aug 30 | $5.199 | $5.499 |
| Aug 31 | $5.199 | $5.559 |
| Sep 1 | $5.259 | $5.559 |
| Sep 2 | $5.259 | $5.559 |
| Sep 3 | $5.279 | $5.579 |
| Sep 4 | $5.359 | $5.659 |
| Sep 5 | $5.369 | $5.699 |
| Sep 6 | $5.369 | $5.739 |
| Sep 7 | $5.369 | $5.739 |
| Sep 8 | $5.369 | $5.739 |
| Sep 9 | $5.499 | $5.799 |
| Sep 10 | $5.499 | $5.799 |
| Sep 11 | $5.539 | $5.799 |
| Sep 12 | $5.559 | $5.859 |
| Sep 13 | $5.559 | $5.859 |
| Sep 14 | $5.599 | $5.899 |
| Sep 15 | $5.659 | $5.959 |
Last updated September 15, 2026. Prices are collected once daily and can lag same-day changes at the pump.
Fullerton is located at 900 S Harbor Blvd, Fullerton, CA 92832-3025, 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.
Warehouse
Station details
Fullerton 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.
Fullerton 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.
Nearby
Costco gas near Fullerton
- Garden GroveGarden Grove, CA · 6.3 mi$5.599Regular
- City Of IndustryCity Of Industry, CA · 9.1 mi$5.699Regular
- Fountain ValleyFountain Valley, CA · 11.0 mi$5.599Regular
- Norwalk CANorwalk, CA · 11.1 mi$5.499Regular
- Signal HillSignal Hill, CA · 14.5 mi$5.599Regular
Distances are straight-line. Prices across the border are shown in that country’s units (¢ per litre).
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