Costco Gas PriceNow

Costco St Peters gas prices

This station's regular prices have climbed about $0.040 per gallon over the past month, from $3.499 to $3.539. Premium is up $0.050 over the same stretch, now at $4.149.

Today's prices

Regular
$3.539
Premium
$4.149

Per gallon, USD · updated July 22, 2026

Updated today · refreshed daily

30-day price history

Regular$3.539Premium$4.149
3.203.403.603.804.004.20Jun 23Jun 30Jul 8Jul 15Jul 22$4.149$3.539
Posted prices at Costco St Peters, past 30 days ($/gal).
View price history as a table
DateRegularPremium
July 22, 2026$3.539$4.149
July 21, 2026$3.499$4.099
July 20, 2026$3.499$4.059
July 19, 2026$3.499$3.999
July 18, 2026$3.459$3.949
July 17, 2026$3.299$3.899
July 16, 2026$3.299$3.899
July 15, 2026$3.299$3.899
July 14, 2026$3.299$3.899
July 13, 2026$3.259$3.899
July 12, 2026$3.229$3.899
July 11, 2026$3.229$3.859
July 10, 2026$3.169$3.799
July 9, 2026$3.149$3.799
July 8, 2026$3.149$3.899
July 7, 2026$3.299$3.899
July 6, 2026$3.299$3.899
July 5, 2026$3.399$3.999
July 4, 2026$3.399$3.999
July 3, 2026$3.399$3.999
July 2, 2026$3.449$3.999
July 1, 2026$3.449$3.999
June 30, 2026$3.399$3.999
June 29, 2026$3.399$3.999
June 28, 2026$3.399$3.999
June 27, 2026$3.449$3.999
June 26, 2026$3.449$3.999
June 25, 2026$3.449$3.999
June 24, 2026$3.449$3.999
June 23, 2026$3.499$4.099

Address

200 Costco Way
Saint Peters, Missouri 63376-4385

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Gas station hours

Mon – Fri
6:00 AM – 10:00 PM
Saturday
6:00 AM – 8:30 PM
Sunday
6:00 AM – 7:30 PM

Warehouse hours

Mon – Fri
10:00 AM – 8:30 PM
Saturday
9:30 AM – 7:00 PM
Sunday
10:00 AM – 6:00 PM

Location

200 Costco Way, Saint Peters 63376-4385

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