Costco St John Business Center Gas Prices – St. Louis, MO
- Regular · today
- $3.879
- Premium · today
- $4.559
USD per gallon · Last updated September 30, 2026 · This station does not sell diesel
8421 St John Industrial Lane, St. Louis, MO 63114-4550 · Open in Maps ↗
30-day range
where today sits- Regular$3.879 today · avg $3.877$3.869 low$3.879 high
- Premium$4.559 today · avg $4.537$4.499 low$4.599 high
Price history at St John Business Center
Last 30 days · USD per gallonView data as table
| Date | Regular | Premium |
|---|---|---|
| Sep 1 | — | — |
| Sep 2 | — | — |
| Sep 3 | — | — |
| Sep 4 | — | — |
| Sep 5 | — | — |
| Sep 6 | — | — |
| Sep 7 | — | — |
| Sep 8 | — | — |
| Sep 9 | — | — |
| Sep 10 | — | — |
| Sep 11 | — | — |
| Sep 12 | — | — |
| Sep 13 | — | — |
| Sep 14 | — | — |
| Sep 15 | — | — |
| Sep 16 | — | — |
| Sep 17 | — | — |
| Sep 18 | — | — |
| Sep 19 | — | — |
| Sep 20 | $3.869 | $4.599 |
| Sep 21 | $3.869 | $4.599 |
| Sep 22 | $3.879 | $4.599 |
| Sep 23 | $3.879 | $4.499 |
| Sep 24 | $3.879 | $4.499 |
| Sep 25 | $3.879 | $4.499 |
| Sep 26 | $3.879 | $4.499 |
| Sep 27 | $3.879 | $4.499 |
| Sep 28 | $3.879 | $4.499 |
| Sep 29 | $3.879 | $4.559 |
| Sep 30 | $3.879 | $4.559 |
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 $3.879 for Regular, St John Business Center is the 2nd cheapest of 9 Costco gas stations in Missouri today, $0.049 below the Missouri average of $3.928.
None of the 5 nearest Costco stations is cheaper today.
- vs the US average
- $0.727 below, at $4.606
- Premium over Regular
- $0.680 — the Missouri median is $0.660
- Over the last 30 days
- effectively unchanged
- Days the price changed
- 1 of 11 reported days
- Cheapest day in the window
- September 21, 2026, at $3.869
- 15-gallon fill
- $58.19, $0.15 more than at the 30-day low
St John Business Center is located at 8421 St John Industrial Lane, St. Louis, MO 63114-4550, 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
St. 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.
St. Louis Warehouse hours
- Mon–Fri
- 7 a.m. – 6 p.m.
- Saturday
- 7 a.m. – 6 p.m.
- Sunday
- 7 a.m. – 6 p.m.
Costco gas near St John Business Center
- 1University CitySaint Louis, MO · 2.4 mi$3.899Regular
- 2Manchester MOManchester, MO · 11.8 mi$3.899Regular
- 3S St LouisSaint Louis, MO · 13.6 mi$3.999Regular
- 4St PetersSaint Peters, MO · 16.0 mi$3.899Regular
- 5East PeoriaEast Peoria, IL · 141.4 mi$4.569Regular
Distances are straight-line. Prices across the border are shown in that country’s units (¢ per litre).
Cities near St. Louis
- Costco gas prices Saint Louis · MO · 8 mi$3.949
- Costco gas prices Manchester · MO · 12 mi$3.899
- Costco gas prices Saint Peters · MO · 16 mi$3.899
- Costco gas prices East Peoria · IL · 141 mi$4.569
- Costco gas prices Champaign · IL · 149 mi$4.429
At this location
- Warehouse opened
- October 2023
- Warehouse phone
- (314) 219-1195
- Pumps open before the warehouse
- 1 hour on weekdays
Costco publishes one number per warehouse; there is no separate line for the gas station.
Frequently asked questions
How much is gas at Costco St John Business Center today?
As of the September 30, 2026 reading: Regular $3.879 and Premium $4.559 per gallon. Prices are collected once a day, so the pump can differ.
What time does the Costco St John Business Center 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 1 hour before the warehouse on weekdays.
Does the Costco St John Business Center gas station sell diesel?
No — this station sells Regular and Premium, and has reported no diesel price in the last 30 days.
Is Costco St John Business Center cheaper than the average Costco station in Missouri?
Yes — at $3.879, Regular here is $0.049 below the Missouri Costco average of $3.928.
Where is the Costco St John Business Center gas station?
At 8421 St John Industrial Lane, St. Louis, MO 63114-4550. 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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