Missouri Gas Prices
Average retail price · Source: AAA · Updated daily
Today's Average
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per gallon · regular unleaded
Missouri benefits from its central US location and access to the Midwest refinery network, keeping gas prices near the national average. Kansas City's proximity to Kansas (with its lower taxes) creates competitive cross-border pricing pressure, while St. Louis benefits from strong station density.
⛽ Gas Tax: 22¢/gallon
Ranked #31 most expensive nationally
Top Gas Station Chains in Missouri
QuikTripCasey'sPhillips 66ShellSinclair
Top Missouri Cities for Gas Prices
Missouri Gas Price FAQ
Is Missouri gas cheaper on the Kansas City Kansas side vs Missouri side?
Yes — the Kansas side of the Kansas City metro has a lower state tax (24¢ vs Missouri's 22¢ combined), and Kansas's proximity to the Cushing oil hub gives it a slight structural advantage. The difference is modest but consistent, typically 5-10¢/gal.
What are the cheapest gas stations in Missouri?
QuikTrip dominates Kansas City and St. Louis with aggressive everyday pricing. Casey's General Store is competitive in smaller Missouri cities. Phillips 66 stations affiliated with grocery loyalty programs offer the best deals for frequent shoppers.
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Gas Prices by City in Missouri
Missouri Gas Price — Frequently Asked Questions
What is the average gas price in Missouri today?
Missouri gas prices are updated daily from AAA data. Check back for today's average.
Why are gas prices lower in Missouri than the national average?
Missouri benefits from low state fuel taxes (~19¢/gal).
What is Missouri's gas tax?
Missouri's state gas tax is approximately 19¢ per gallon, one of the lowest in the United States. This is a combined state excise tax and in some states includes local levies. The federal gas tax adds an additional 18.4¢/gal on top of state taxes.
When is the cheapest time to buy gas in Missouri?
Gas prices in Missouri — like across the US — tend to be lowest on Mondays and Tuesdays, when weekly demand is lowest. Prices typically rise Thursday through Saturday as weekend travel demand increases. Avoiding fill-ups on Fridays and Saturdays can save 3–8¢/gal on average. Missouri prices also tend to be lower in late fall and winter when summer-blend fuel requirements end.
Which cities in Missouri have the cheapest gas?
Gas prices vary by city within Missouri based on local competition, distance from fuel terminals, and population density. Use our city pages to compare prices across Missouri: cities farther from major metro areas and distribution hubs often have slightly higher prices due to transport costs, while high-competition suburban areas near major highways tend to be cheapest.