Costco Gas Prices in Salt Lake City, UT
- Regular avg
- $4.629▼ −$0.035
- Premium avg
- $5.099
- Diesel avg
- $6.339▼ −$0.060
- Stations reporting
- 2
Avg of 2 stations · per gallon · ▲▼ change since the previous day
Price history in Salt Lake City
Last 30 days · per gallonView data as table
| Date | Regular | Premium | Diesel |
|---|---|---|---|
| Sep 1 | $4.144 | $4.579 | $5.299 |
| Sep 2 | $4.224 | $4.679 | $5.359 |
| Sep 3 | $4.254 | $4.709 | $5.359 |
| Sep 4 | $4.269 | $4.679 | $5.359 |
| Sep 5 | $4.269 | $4.679 | $5.399 |
| Sep 6 | $4.264 | $4.679 | $5.459 |
| Sep 7 | $4.279 | $4.699 | $5.459 |
| Sep 8 | $4.279 | $4.699 | $5.459 |
| Sep 9 | $4.299 | $4.759 | $5.499 |
| Sep 10 | $4.299 | $4.759 | $5.599 |
| Sep 11 | $4.449 | $4.949 | $5.699 |
| Sep 12 | $4.449 | $4.974 | $5.699 |
| Sep 13 | $4.474 | $4.974 | $5.699 |
| Sep 14 | $4.499 | $4.999 | $5.699 |
| Sep 15 | $4.499 | $4.999 | $5.699 |
| Sep 16 | $4.549 | $4.974 | $5.799 |
| Sep 17 | $4.529 | $4.974 | $5.799 |
| Sep 18 | — | — | — |
| Sep 19 | $4.479 | $4.949 | $6.119 |
| Sep 20 | $4.479 | $4.949 | $6.119 |
| Sep 21 | $4.489 | $4.964 | $6.149 |
| Sep 22 | $4.554 | $4.999 | $6.199 |
| Sep 23 | $4.554 | $4.999 | $6.199 |
| Sep 24 | $4.574 | $4.999 | $6.299 |
| Sep 25 | $4.574 | $5.049 | $6.299 |
| Sep 26 | $4.574 | $5.049 | $6.349 |
| Sep 27 | $4.599 | $5.074 | $6.349 |
| Sep 28 | $4.629 | $5.099 | $6.399 |
| Sep 29 | $4.664 | $5.099 | $6.399 |
| Sep 30 | $4.629 | $5.099 | $6.339 |
Costco gas in Salt Lake City today
Salt Lake City has 2 Costco gas stations: Salt Lake City at 1818 S 300 W and West Valley at 3747 S 2700 W.
Today’s Regular prices span $0.060 across the 2 stations reporting, from the cheapest to the most expensive.
Costco Regular prices in Salt Lake City have climbed about $0.405 over the past month, from $4.224 a month ago.
The furthest any single station moved was West Valley, up $0.460.
- Cheapest today
- Salt Lake City — $4.599
- Most expensive today
- West Valley — $4.659
- vs the Utah average
- $0.131 below, at $4.760
- Diesel
- sold at 1 of 2 stations
Costco gas stations in Salt Lake City
Fuel grades at Costco in Salt Lake City
All 2 Costco gas stations in Salt Lake City sell Kirkland Signature fuel, which is Top Tier certified. Diesel is sold at 1 of the 2.
| Grade | Stations | Avg today | Cheapest |
|---|---|---|---|
| Regular | 2 | $4.629 | Salt Lake City $4.599 |
| Premium | 2 | $5.099 | Salt Lake City $5.099 |
| Diesel | 1 | $6.339 | Salt Lake City $6.339 |
Regular
all 2 stations87-octane Kirkland Signature unleaded, the grade most cars are built for.
- Same TOP TIER detergent package as premium. The only difference between the two is octane.
- Can contain up to 10% ethanol, like most US gasoline. The pump label shows the blend.
Premium
all 2 stationsKirkland Signature premium: 91 octane at most stations, 93 in some regions.
- Only needed if your owner’s manual requires or recommends premium. Higher octane resists engine knock; it adds nothing to an engine built for regular.
- Carries the same detergent additives as regular.
Diesel
1 of 2 stationsKirkland Signature diesel, ultra-low-sulfur like all on-road diesel in the US.
- Costco says its diesel additives clean deposits from fuel injectors, keep new ones from forming and help reduce engine wear.
Not sold at Costco
- Mid-grade (89): Costco pumps offer regular and premium only.
- Cash sales: every Costco pump is card-only.
Is Costco gas in Salt Lake City good quality?
Costco does not sell a refiner’s brand. Every pump in Salt Lake City dispenses Costco’s own Kirkland Signature fuel, bought from major refiners and distributors in the region and finished with Costco’s additive package.
Kirkland Signature gasoline is licensed TOP TIER, the detergent standard set by automakers including GM, Ford, Toyota, Honda and BMW. Costco puts its detergent level at about five times the EPA minimum, which is what keeps intake valves and fuel injectors clear of carbon deposits. Costco’s gasoline also contains friction modifiers that it says reduce engine wear.
In short, the low price is not a lower grade. The saving comes from Costco running its gas as a membership perk on thin margins, not from the fuel.
Costco gas station hours in Salt Lake City
On weekdays the earliest pumps in Salt Lake City come on at 6 a.m. (Salt Lake City) and the last ones switch off at 10 p.m. (Salt Lake City). Pump hours run longer than the warehouse's, and weekends are shorter. Times are local.
| Station | Mon–Fri | Sat | Sun |
|---|---|---|---|
| Salt Lake City | 6 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| West Valley | 6 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
What else is at Costco warehouses in Salt Lake City
Every Costco gas station sits in a warehouse parking lot, so a fill-up can share a trip with the rest of the list.
- Food court
- 2 of 2
- Pharmacy
- 2 of 2
- Optical
- 2 of 2
- Tire center
- 2 of 2
- Car wash
- 0 of 2
- EV charging
- 0 of 2
How Costco gas works in Salt Lake City
Bring your card. The pump asks for an active Costco membership card before it starts, at all 2 gas stations in Salt Lake City. Without a membership, a Costco Shop Card loaded with credit works the same way.
Pay by card. The pumps take Visa, most debit cards and the Costco Shop Card. There is no cash, and a card hold of up to $150 can show until the fill posts.
Check the price first. Each station sets its own price, usually once a day, so two Costco stations in Salt Lake City can differ. Today the regular average here is $4.629. The prices on this page are collected once daily and can lag a same-day change at the pump.
Go early or late. Lines are longest on weekend afternoons and weekday evenings. The first pumps here open at 6 a.m. on weekdays.
ZIP codes with Costco gas in Salt Lake City
Costco gas in Salt Lake City is in 2 ZIP codes. Each links to the station there.
- Costco gas 84115 · Salt Lake City
- Costco gas 84119 · West Valley
Cities near Salt Lake City
- Costco gas prices Murray · UT · 4 mi$4.699
- Costco gas prices South Jordan · UT · 11 mi$4.659
- Costco gas prices Sandy · UT · 11 mi$4.659
- Costco gas prices West Bountiful · UT · 13 mi$4.679
- Costco gas prices Riverton · UT · 14 mi$4.559
- Costco gas prices Saratoga Springs · UT · 23 mi$4.799
- Costco gas prices Lehi · UT · 23 mi$4.799
- Costco gas prices Syracuse · UT · 27 mi$4.799
States near Utah
- Costco gas prices Idaho · 7 stations$4.842
- Costco gas prices Nevada · 9 stations$5.191
- Costco gas prices Colorado · 15 stations$3.784
- Costco gas prices Montana · 5 stations$4.475
Costco gas in Salt Lake City: common questions
Where is the cheapest Costco gas in Salt Lake City today?
Salt Lake City posts the lowest Regular price in Salt Lake City, $4.599 as of the September 30, 2026 reading — $0.060 under West Valley, the most expensive of the 2 stations reporting.
How many Costco gas stations are there in Salt Lake City?
Salt Lake City has 2 Costco warehouses with a gas station, and all of them reported a price in the last 30 days.
Does any Costco gas station in Salt Lake City sell diesel?
Diesel is sold at 1 of 2 stations in Salt Lake City. Each station page lists the grades that warehouse has actually posted a price for in the last 30 days.
Is Costco gas cheaper in Salt Lake City than in Utah?
Yes — the Salt Lake City Costco average for Regular is $4.629, $0.131 below the Utah average of $4.760 as of the September 30, 2026 reading.
Are Costco gas prices in Salt Lake City going up or down?
Up — the Salt Lake City Costco average for Regular has climbed about $0.405 over the past month, from $4.224 to $4.629.