Costco S St Louis Gas Prices – Saint Louis, MO
- Regular · today
- $3.999
- Premium · today
- $4.649▲ +$0.050
USD per gallon · Last updated September 30, 2026 · This station does not sell diesel
4200 Rusty Rd, Saint Louis, MO 63128-1973 · Open in Maps ↗
30-day range
where today sits- Regular$3.999 today · avg $3.882$3.699 low$3.999 high
- Premium$4.649 today · avg $4.502$4.299 low$4.649 high
Price history at S St Louis
Last 30 days · USD per gallonView data as table
| Date | Regular | Premium |
|---|---|---|
| Sep 1 | $3.699 | $4.299 |
| Sep 2 | $3.699 | $4.299 |
| Sep 3 | $3.699 | $4.299 |
| Sep 4 | $3.699 | $4.299 |
| Sep 5 | $3.699 | $4.299 |
| Sep 6 | $3.759 | $4.399 |
| Sep 7 | $3.799 | $4.449 |
| Sep 8 | $3.799 | $4.449 |
| Sep 9 | $3.849 | $4.499 |
| Sep 10 | $3.899 | $4.549 |
| Sep 11 | $3.899 | $4.549 |
| Sep 12 | $3.899 | $4.549 |
| Sep 13 | $3.899 | $4.549 |
| Sep 14 | $3.899 | $4.549 |
| Sep 15 | $3.899 | $4.549 |
| Sep 16 | $3.899 | $4.499 |
| Sep 17 | $3.899 | $4.549 |
| Sep 18 | — | — |
| Sep 19 | $3.999 | $4.599 |
| Sep 20 | $3.999 | $4.599 |
| Sep 21 | $3.999 | $4.599 |
| Sep 22 | $3.999 | $4.549 |
| Sep 23 | $3.939 | $4.549 |
| Sep 24 | $3.939 | $4.549 |
| Sep 25 | $3.939 | $4.549 |
| Sep 26 | $3.939 | $4.549 |
| Sep 27 | $3.939 | $4.549 |
| Sep 28 | $3.999 | $4.599 |
| Sep 29 | $3.999 | $4.599 |
| Sep 30 | $3.999 | $4.649 |
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 $3.999 for Regular, S St Louis is tied for the 2nd most expensive of 9 Costco gas stations in Missouri today, $0.071 above the Missouri average of $3.928.
Manchester MO, 11.0 mi away, is $0.100 cheaper.
- vs the US average
- $0.607 below, at $4.606
- Premium over Regular
- $0.650 — the Missouri median is $0.660
- Over the last 30 days
- up $0.300
- Days the price changed
- 7 of 29 reported days
- Cheapest day in the window
- September 5, 2026, at $3.699
- 15-gallon fill
- $59.98, $4.50 more than at the 30-day low
- Nearest cheaper station
- Manchester MO — 11.0 mi
S St Louis is located at 4200 Rusty Rd, Saint Louis, MO 63128-1973, in Missouri. 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
Saint Louis 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.
Saint Louis 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 S St Louis
- 1Manchester MOManchester, MO · 11.0 mi$3.899Regular
- 2University CitySaint Louis, MO · 11.6 mi$3.899Regular
- 3St John Business CenterSt. Louis, MO · 13.6 mi$3.879Regular
- 4St PetersSaint Peters, MO · 24.6 mi$3.899Regular
Distances are straight-line. Prices across the border are shown in that country’s units (¢ per litre).
Cities near Saint Louis
- Costco gas prices Manchester · MO · 11 mi$3.899
- Costco gas prices St. Louis · MO · 14 mi$3.879
- Costco gas prices Saint Peters · MO · 25 mi$3.899
At this location
- Warehouse opened
- September 2002
- Warehouse phone
- (314) 894-7950
- 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 S St Louis today?
As of the September 30, 2026 reading: Regular $3.999 and Premium $4.649 per gallon. Prices are collected once a day, so the pump can differ.
What time does the Costco S St Louis 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 S St Louis gas station sell diesel?
No — this station sells Regular and Premium, and has reported no diesel price in the last 30 days.
Is Costco S St Louis cheaper than the average Costco station in Missouri?
No — at $3.999, Regular here is $0.071 above the Missouri Costco average of $3.928.
Where is the Costco S St Louis gas station?
At 4200 Rusty Rd, Saint Louis, MO 63128-1973. 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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