Costco Gas Prices in Delaware
- Regular avg
- $3.729
- Premium avg
- $4.549
- Stations reporting
- 1
Avg of 1 station · per gallon · ▲▼ change since the previous day
Average price history in Delaware
Last 30 days · per gallonRegular: $3.969 on Oct 2 to $3.729 on Oct 31, low $3.729, high $3.969. Premium: $4.829 on Oct 2 to $4.549 on Oct 31, low $4.549, high $4.829.
Costco gas in Delaware today
The only Costco gas station in Delaware is at the Christiana warehouse in Newark, 900 Center Blvd.
Delaware has a single Costco warehouse with a gas station, so the Delaware average above is that station’s own price rather than a spread.
Costco Regular prices in Delaware have eased about $0.240 over the past month, from $3.969 a month ago.
- Only Costco gas station in Delaware
- Christiana — $3.729
- vs the US average
- $0.546 below, at $4.275
- Diesel
- not sold here
- Weekday opening
- 6 a.m.
- Warehouse opened
- October 1998
Delaware stations by price
Cheapest first — page through to see more.
| Rank | Station | Location | Regular today |
|---|---|---|---|
| 1 | ChristianaNewark | Newark | $3.729 |
Fuel grades at Costco in Delaware
The Costco station in Delaware sells Kirkland Signature fuel, which is Top Tier certified. None of it reported a diesel price in the last 30 days.
| Grade | Stations | Avg today | Cheapest |
|---|---|---|---|
| Regular | 1 | $3.729 | Christiana $3.729 |
| Premium | 1 | $4.549 | Christiana $4.549 |
Regular
1 station87-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
1 stationKirkland 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.
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 Delaware good quality?
Costco does not sell a refiner’s brand. Every pump in Delaware 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 Delaware
Pump hours run longer than the warehouse's, and weekends are shorter. Times are local.
| Station | Mon–Fri | Sat | Sun |
|---|---|---|---|
| Christiana | 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 Delaware
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
- 1 of 1
- Pharmacy
- 1 of 1
- Optical
- 1 of 1
- Tire center
- 1 of 1
- Car wash
- 0 of 1
- EV charging
- 0 of 1
How Costco gas works in Delaware
Bring your card. The pump asks for an active Costco membership card before it starts, at the gas station in Delaware. 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 Delaware can differ. Today the regular average here is $3.729. 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.
Delaware prices by city
- Newark · 1 station$3.729
States near Delaware
- Costco gas prices Maryland · 9 stations$3.717
- Costco gas prices Pennsylvania · 11 stations$4.062
- Costco gas prices New Jersey · 19 stations$3.912
- Costco gas prices Virginia · 15 stations$3.750
- Costco gas prices New York · 11 stations$3.992
- Costco gas prices Connecticut · 7 stations$3.916
Costco gas in Delaware: common questions
Where is the cheapest Costco gas in Delaware today?
Delaware has one Costco gas station, Christiana, so it is the cheapest by default: Regular is $3.729 there as of the October 31, 2026 reading.
How many Costco gas stations are there in Delaware?
Delaware has 1 Costco warehouse with a gas station, and it has reported a price in the last 30 days.
Does the Costco gas station in Delaware sell diesel?
No — the one Costco gas station in Delaware has reported no diesel price in the last 30 days. Costco sells diesel at a minority of its locations in the US.
Is Costco gas cheaper in Delaware than in the US?
Yes — the average Costco Regular price in Delaware is $3.729, $0.546 below the US average of $4.275 as of the October 31, 2026 reading.
Are Costco gas prices in Delaware going up or down?
Down — the average Costco Regular price in Delaware has eased about $0.240 over the past month, from $3.969 to $3.729.
What time do Costco gas stations in Delaware open?
The pumps open at 6 a.m. on weekdays at the one station in Delaware, ahead of the warehouse doors. Each station page carries its own full week, in local time.