Costco Gas Prices in Missouri
- Regular avg
- $3.653▼ −$0.007
- Premium avg
- $4.292▼ −$0.002
- Diesel avg
- $5.849
- Stations reporting
- 11
Avg of 11 stations · per gallon · ▲▼ change since the previous day
Average price history in Missouri
Last 30 days · per gallonRegular: $3.929 on Oct 2 to $3.653 on Oct 31, low $3.653, high $3.929. Premium: $4.615 on Oct 2 to $4.292 on Oct 31, low $4.292, high $4.615. Diesel: $5.999 on Oct 2 to $5.849 on Oct 31, low $5.849, high $5.999.
Costco gas in Missouri today
Costco gas stations in Missouri include the warehouses in Independence, Kansas City (Kansas City, Kansas City Business Centre, and N Kansas City), Lees Summit, Manchester, Saint Louis (S St Louis and University City), Saint Peters, Springfield, and St. Louis.
Today’s Regular prices span $0.690 across the 11 stations reporting, from the cheapest to the most expensive.
Costco Regular prices in Missouri have eased about $0.269 over the past month, from $3.922 a month ago.
The furthest any single station moved was St Peters, down $0.450.
- Cheapest today
- St Peters — $3.399
- Most expensive today
- Kansas City — $4.089
- vs the US average
- $0.622 below, at $4.275
- Diesel
- sold at 1 of 11 stations
- Weekday opening
- 6 a.m. at all 11 stations
- Newest warehouse
- Lees Summit — October 2026
- Oldest warehouse
- Kansas City — January 2001
Missouri stations by price
Cheapest first — page through to see more.
| Rank | Station | Location | Regular today |
|---|---|---|---|
| 1 | St PetersSaint Peters | Saint Peters | $3.399 |
| 2 | S St LouisSaint Louis | Saint Louis | $3.559 |
| 3 | University CitySaint Louis | Saint Louis | $3.599 |
| 4 | St John Business CenterSt. Louis | St. Louis | $3.599 |
| 5 | IndependenceIndependence | Independence | $3.679 |
| 6 | SpringfieldSpringfield | Springfield | $3.679 |
| 7 | Manchester MOManchester | Manchester | $3.699 |
| 8 | Lees SummitLees Summit | Lees Summit | $3.739 |
| 9 | N Kansas CityKansas City | Kansas City | $3.779 |
| 10 | Kansas City Business CentreKansas City | Kansas City | $3.799 |
| 11 | Kansas CityKansas City | Kansas City | $4.089 |
Fuel grades at Costco in Missouri
All 11 Costco gas stations in Missouri sell Kirkland Signature fuel, which is Top Tier certified. Diesel is sold at 1 of the 11.
| Grade | Stations | Avg today | Cheapest |
|---|---|---|---|
| Regular | 11 | $3.653 | St Peters $3.399 |
| Premium | 11 | $4.292 | St Peters $4.089 |
| Diesel | 1 | $5.849 | N Kansas City $5.849 |
Regular
all 11 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 11 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 11 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 Missouri good quality?
Costco does not sell a refiner’s brand. Every pump in Missouri 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 Missouri
On weekdays the earliest pumps in Missouri come on at 6 a.m. (Independence) and the last ones switch off at 10 p.m. (Independence). Pump hours run longer than the warehouse's, and weekends are shorter. Times are local.
| Station | Mon–Fri | Sat | Sun |
|---|---|---|---|
| Independence | 6 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| Kansas City | 6 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| Kansas City Business Centre | 6 a.m. – 7 p.m. | 6 a.m. – 7 p.m. | 6 a.m. – 7 p.m. |
| Lees Summit | 6 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| Manchester MO | 6 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| N Kansas City | 6 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| S St Louis | 6 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| Springfield | 6 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| St John Business Center | 6 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| St Peters | 6 a.m. – 10 p.m. | 6 a.m. – 8:30 p.m. | 6 a.m. – 7:30 p.m. |
| University City | 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 Missouri
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
- 9 of 11
- Pharmacy
- 9 of 11
- Optical
- 9 of 11
- Tire center
- 9 of 11
- Car wash
- 0 of 11
- EV charging
- 0 of 11
How Costco gas works in Missouri
Bring your card. The pump asks for an active Costco membership card before it starts, at all 11 gas stations in Missouri. 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 Missouri can differ. Today the regular average here is $3.653. 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.
Missouri prices by city
- Independence · 1 station$3.679
- Kansas City · 3 stations$3.789
- Lees Summit · 1 station$3.739
- Manchester · 1 station$3.699
- Saint Louis · 2 stations$3.579
- Saint Peters · 1 station$3.399
- Springfield · 1 station$3.679
- St. Louis · 1 station$3.599
States near Missouri
- Costco gas prices Kansas · 4 stations$3.704
- Costco gas prices Iowa · 4 stations$3.842
- Costco gas prices Nebraska · 4 stations$3.884
- Costco gas prices Arkansas · 1 station$3.539
- Costco gas prices Oklahoma · 4 stations$3.496
- Costco gas prices Illinois · 24 stations$4.625
Costco gas in Missouri: common questions
Where is the cheapest Costco gas in Missouri today?
St Peters posts the lowest Regular price in Missouri, $3.399 as of the October 31, 2026 reading — $0.690 under Kansas City, the most expensive of the 11 stations reporting.
How many Costco gas stations are there in Missouri?
Missouri has 11 Costco warehouses with a gas station, across 8 cities, and all of them reported a price in the last 30 days.
Which Costco gas stations in Missouri sell diesel?
Diesel is sold at 1 of 11 stations in Missouri. Each station page lists the grades that warehouse has actually posted a price for in the last 30 days.
Is Costco gas cheaper in Missouri than in the US?
Yes — the average Costco Regular price in Missouri is $3.653, $0.622 below the US average of $4.275 as of the October 31, 2026 reading.
Are Costco gas prices in Missouri going up or down?
Down — the average Costco Regular price in Missouri has eased about $0.269 over the past month, from $3.922 to $3.653.
What time do Costco gas stations in Missouri open?
The pumps open at 6 a.m. on weekdays at all 11 stations, ahead of the warehouse doors. Each station page carries its own full week, in local time.