Costco Napa Gas Prices – Riversound Way
- Regular · today
- $6.099
- Premium · today
- $6.499
USD per gallon · Last updated September 30, 2026 · This station does not sell diesel
280 Riversound Way, Napa, CA 94558-6357 · Open in Maps ↗
30-day range
where today sits- Regular$6.099 today · avg $5.792$5.399 low$6.099 high
- Premium$6.499 today · avg $6.307$5.859 low$6.499 high
Price history at Napa
Last 30 days · USD per gallonView data as table
| Date | Regular | Premium |
|---|---|---|
| Sep 1 | $5.399 | $5.859 |
| Sep 2 | $5.399 | $5.899 |
| Sep 3 | $5.399 | $5.999 |
| Sep 4 | $5.459 | $6.059 |
| Sep 5 | $5.499 | $6.059 |
| Sep 6 | $5.499 | $6.059 |
| Sep 7 | $5.599 | $6.099 |
| Sep 8 | $5.599 | $6.099 |
| Sep 9 | $5.599 | $6.099 |
| Sep 10 | $5.699 | $6.199 |
| Sep 11 | $5.799 | $6.299 |
| Sep 12 | $5.799 | $6.359 |
| Sep 13 | $5.799 | $6.359 |
| Sep 14 | $5.859 | $6.359 |
| Sep 15 | $5.859 | $6.359 |
| Sep 16 | $5.859 | $6.359 |
| Sep 17 | $5.859 | $6.399 |
| Sep 18 | — | — |
| Sep 19 | $5.899 | $6.499 |
| Sep 20 | $5.899 | $6.499 |
| Sep 21 | $5.899 | $6.499 |
| Sep 22 | $5.899 | $6.499 |
| Sep 23 | $5.899 | $6.499 |
| Sep 24 | $5.999 | $6.499 |
| Sep 25 | $5.999 | $6.499 |
| Sep 26 | $6.099 | $6.499 |
| Sep 27 | $6.099 | $6.499 |
| Sep 28 | $6.099 | $6.499 |
| Sep 29 | $6.099 | $6.499 |
| Sep 30 | $6.099 | $6.499 |
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 $6.099 for Regular, Napa is tied for the 35th most expensive of 128 Costco gas stations in California today, $0.057 above the California average of $6.042.
Vallejo, 8.9 mi away, is $0.200 cheaper.
- vs the US average
- $1.493 above, at $4.606
- Premium over Regular
- $0.400 — the California median is $0.400
- Over the last 30 days
- up $0.700
- Days the price changed
- 9 of 29 reported days
- Cheapest day in the window
- September 3, 2026, at $5.399
- 15-gallon fill
- $91.48, $10.50 more than at the 30-day low
- Nearest cheaper station
- Vallejo — 8.9 mi
Napa is located at 280 Riversound Way, Napa, CA 94558-6357, 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
Napa 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.
Napa 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 Napa
- 1FairfieldFairfield, CA · 7.7 mi$6.199Regular
- 2VallejoVallejo, CA · 8.9 mi$5.899Regular
- 3VacavilleVacaville, CA · 17.6 mi$6.099Regular
- 4ConcordConcord, CA · 24.3 mi$5.879Regular
- 5Richmond CARichmond, CA · 24.5 mi$6.199Regular
Distances are straight-line. Prices across the border are shown in that country’s units (¢ per litre).
Cities near Napa
- Costco gas prices Fairfield · CA · 8 mi$6.199
- Costco gas prices Vallejo · CA · 9 mi$5.899
- Costco gas prices Vacaville · CA · 18 mi$6.099
- Costco gas prices Concord · CA · 24 mi$5.879
- Costco gas prices Richmond · CA · 25 mi$6.199
- Costco gas prices Rohnert Park · CA · 25 mi$6.399
- Costco gas prices Santa Rosa · CA · 26 mi$6.399
- Costco gas prices Antioch · CA · 29 mi$5.979
At this location
- Warehouse opened
- October 2024
- Warehouse phone
- (707) 819-5900
- EV charging
- On the warehouse lot
- Pumps open before the warehouse
- 4 hours on weekdays
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 Napa today?
As of the September 30, 2026 reading: Regular $6.099 and Premium $6.499 per gallon. Prices are collected once a day, so the pump can differ.
What time does the Costco Napa 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 4 hours before the warehouse on weekdays.
Does the Costco Napa gas station sell diesel?
No — this station sells Regular and Premium, and has reported no diesel price in the last 30 days.
Is Costco Napa cheaper than the average Costco station in California?
No — at $6.099, Regular here is $0.057 above the California Costco average of $6.042.
Can you charge an electric car at Costco Napa?
Yes — this warehouse has EV charging on its lot, separate from the fuel pumps.
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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