Costco Nampa Gas Prices – Market Place Blvd
- Regular · today
- $4.859▼ −$0.040
- Premium · today
- $5.349▼ −$0.050
USD per gallon · Last updated September 30, 2026 · This station does not sell diesel
16700 N Market Place Blvd, Nampa, ID 83687-7909 · Open in Maps ↗
30-day range
where today sits- Regular$4.859 today · avg $4.635$4.299 low$4.899 high
- Premium$5.349 today · avg $5.120$4.799 low$5.399 high
Price history at Nampa
Last 30 days · USD per gallonView data as table
| Date | Regular | Premium |
|---|---|---|
| Sep 1 | $4.299 | $4.799 |
| Sep 2 | $4.359 | $4.899 |
| Sep 3 | $4.359 | $4.899 |
| Sep 4 | $4.359 | $4.899 |
| Sep 5 | $4.499 | $4.899 |
| Sep 6 | $4.499 | $4.899 |
| Sep 7 | $4.429 | $4.939 |
| Sep 8 | $4.429 | $4.939 |
| Sep 9 | $4.499 | $4.939 |
| Sep 10 | $4.499 | $4.939 |
| Sep 11 | $4.599 | $4.999 |
| Sep 12 | $4.599 | $5.049 |
| Sep 13 | $4.489 | $5.049 |
| Sep 14 | $4.659 | $5.099 |
| Sep 15 | $4.659 | $5.199 |
| Sep 16 | $4.659 | $5.199 |
| Sep 17 | $4.669 | $5.199 |
| Sep 18 | — | — |
| Sep 19 | $4.699 | $5.159 |
| Sep 20 | $4.699 | $5.089 |
| Sep 21 | $4.729 | $5.239 |
| Sep 22 | $4.739 | $5.249 |
| Sep 23 | $4.859 | $5.239 |
| Sep 24 | $4.859 | $5.359 |
| Sep 25 | $4.859 | $5.359 |
| Sep 26 | $4.859 | $5.399 |
| Sep 27 | $4.899 | $5.399 |
| Sep 28 | $4.899 | $5.399 |
| Sep 29 | $4.899 | $5.399 |
| Sep 30 | $4.859 | $5.349 |
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 $4.859 for Regular, Nampa is tied for the 3rd cheapest of 7 Costco gas stations in Idaho today, in line with the Idaho average of $4.842.
None of the 3 nearest Costco stations is cheaper today.
- vs the US average
- $0.253 above, at $4.606
- Premium over Regular
- $0.490 — the Idaho median is $0.520
- Over the last 30 days
- up $0.560
- Days the price changed
- 14 of 29 reported days
- Cheapest day in the window
- September 1, 2026, at $4.299
- 15-gallon fill
- $72.89, $8.40 more than at the 30-day low
Nampa is located at 16700 N Market Place Blvd, Nampa, ID 83687-7909, in Idaho. 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
Nampa 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.
Nampa 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 Nampa
- 1MeridianMeridian, ID · 8.3 mi$4.859Regular
- 2BoiseBoise, ID · 15.9 mi$4.949Regular
- 3Twin FallsTwin Falls, ID · 128.4 mi$4.999Regular
Distances are straight-line. Prices across the border are shown in that country’s units (¢ per litre).
Cities near Nampa
- Costco gas prices Meridian · ID · 8 mi$4.859
- Costco gas prices Boise · ID · 16 mi$4.949
- Costco gas prices Twin Falls · ID · 128 mi$4.999
At this location
- Warehouse opened
- August 2006
- Warehouse phone
- (208) 465-3800
- 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 Nampa today?
As of the September 30, 2026 reading: Regular $4.859 and Premium $5.349 per gallon. Prices are collected once a day, so the pump can differ.
What time does the Costco Nampa 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 Nampa gas station sell diesel?
No — this station sells Regular and Premium, and has reported no diesel price in the last 30 days.
Is Costco Nampa cheaper than the average Costco station in Idaho?
Not meaningfully: at $4.859, Regular here is level with the Idaho Costco average of $4.842.
Where is the Costco Nampa gas station?
At 16700 N Market Place Blvd, Nampa, ID 83687-7909. 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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