Gas Prices in St. Louis, MO Today
Updated April 5, 2026 — Prices updated regularly from EIA data
Average Regular Unleaded — St. Louis, Missouri
Current Gas Prices in St. Louis
Today in St. Louis, Missouri, regular gas is averaging $$2.91 per gallon. Prices across the metro vary by as much as 20-30 cents, so using a price comparison app before every fill-up pays off.
| Fuel Type | Price / Gallon | Grade | Trend |
|---|---|---|---|
| Regular Unleaded | $2.91 | 87 octane | ▲ Rising |
| Mid-Grade | $3.36 | 89 octane | ▲ Rising |
| Premium | $3.63 | 91-93 octane | ▲ Rising |
| Diesel | $3.94 | N/A | ▲ Rising |
Price Comparison
About Gas Prices in St. Louis
Local St. Louis drivers have learned key strategies for minimizing fuel costs. Fill up on Mondays or Tuesdays when prices are typically at their weekly low. Avoid stations within a mile of highway exits — the convenience markup adds real cost. Loyalty apps from major brands can save 5-10 cents per gallon with minimal effort.
Gas Prices by Brand in This City
Estimated prices based on brand modifiers. Sorted cheapest to most expensive.
Fuel Type Prices in This City
Gas Prices in Nearby Cities
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