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Costco St Peters Gas Prices – Saint Peters, MO

Regular · today
$3.399
Premium · today
$4.089

USD per gallon · Last updated October 31, 2026 · This station does not sell diesel

200 Costco Way, Saint Peters, MO 63376-4385 · Open in Maps ↗

30-day range

where today sits
  • Regular$3.399 today · avg $3.732
    $3.399 low$3.859 high
  • Premium$4.089 today · avg $4.455
    $4.089 low$4.599 high

Price history at St Peters

Last 30 days · USD per gallon
RegularPremium

Regular: $3.849 on Oct 2 to $3.399 on Oct 31, low $3.399, high $3.859. Premium: $4.599 on Oct 2 to $4.089 on Oct 31, low $4.089, high $4.599.

Last updated October 31, 2026. Prices are collected once daily and can lag same-day changes at the pump.

Today’s price in context

At $3.399 for Regular, St Peters is the cheapest of 11 Costco gas stations in Missouri today, $0.254 below the Missouri average of $3.653.

None of the 5 nearest Costco stations is cheaper today.

vs the US average
$0.876 below, at $4.275
Premium over Regular
$0.690 — the Missouri median is $0.690
Regular over the last 30 days
down $0.450
Days the price changed
9 of 30 reported days
Latest day at the 30-day low
today, at $3.399
15-gallon fill
$50.98 — the cheapest it has been in 30 days

St Peters is located at 200 Costco Way, Saint Peters, MO 63376-4385, 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 Peters 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 Peters 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 St Peters

  1. 1Manchester MOManchester, MO · 14.7 mi$3.699Regular
  2. 2University CitySaint Louis, MO · 15.7 mi$3.599Regular
  3. 3St John Business CenterSt. Louis, MO · 16.0 mi$3.599Regular
  4. 4S St LouisSaint Louis, MO · 24.6 mi$3.559Regular
  5. 5East PeoriaEast Peoria, IL · 140.3 mi$4.549Regular

Distances are straight-line.

Cities near Saint Peters

At this location

Warehouse opened
May 2001
Warehouse phone
(636) 970-4004
Pumps open early
4 hours before the warehouse on weekdays

Also at this warehouse: a food court, a pharmacy, an optical department, a hearing aid center and a tire center.

Frequently asked questions

How much is gas at Costco St Peters today?

As of October 31, 2026: Regular $3.399 and Premium $4.089 per gallon. Prices are collected once a day, so the pump can differ.

What time does the Costco St Peters 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 St Peters 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 Peters cheaper than the average Costco station in Missouri?

Yes — at $3.399, Regular here is $0.254 below the average Costco price in Missouri, $3.653.

Where is the Costco St Peters gas station?

At 200 Costco Way, Saint Peters, MO 63376-4385. 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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