Gas Prices in Mississippi Today
Updated weekly from the US Energy Information Administration. Mississippi is part of the Gulf Coast (PADD 3) supply region.
Current Gas Prices
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Mississippi Gas Tax: 18.4¢ per gallon
Mississippi charges 18.4 cents per gallon in state excise tax, plus the federal 18.4¢/gal tax. Total tax burden: 36.8¢/gal. This relatively low tax helps keep Mississippi gas prices competitive.
Cheapest Gas Stations in Mississippi
Compare with Neighboring States
Frequently Asked Questions About Mississippi Gas Prices
What is the average gas price in Mississippi right now?▾
Gas prices in Mississippi are updated weekly. Check back soon for the latest statewide average, or browse our city pages for the most current local data. Historically, Mississippi prices track closely with the Gulf Coast regional average.
What is the gas tax in Mississippi?▾
Mississippi charges approximately 18.4 cents per gallon in state excise taxes on gasoline. The federal gas tax adds another 18.4 cents per gallon, bringing the combined tax burden to roughly 36.8 cents per gallon. Mississippi's state tax is below the national average, which helps keep pump prices relatively low.
When is the cheapest day to buy gas in Mississippi?▾
Nationally, Monday and Tuesday tend to offer the lowest gas prices, while Friday and Saturday are often the most expensive as weekend demand rises. In Mississippi, patterns follow similar trends. Prices also fluctuate based on crude oil markets, which reset each week. Checking prices early in the week can save you several cents per gallon.
How does Mississippi gas compare to neighboring states?▾
Mississippi borders tennessee, alabama, louisiana, and prices across state lines can vary by 5–30 cents per gallon depending on each state's gas tax, refinery access, and local competition. Mississippi's PADD 3 regional supply chain primarily influences local prices. Drivers near state borders may find it worthwhile to cross state lines for a fill-up if price differentials are significant.
Why do gas prices change so frequently in Mississippi?▾
Gas prices in Mississippi react to several factors: crude oil futures (the biggest driver), local refinery output, seasonal fuel blend mandates, transportation costs to Jackson, and local retailer margins. Prices typically update weekly or more frequently when crude markets are volatile. Summer-blend gasoline, which is more expensive to produce, also raises prices from spring through Labor Day.
How can I find the cheapest gas station in Mississippi?▾
Use our station finder on any city page to see real-time prices at nearby stations. Apps like GasBuddy can also show crowdsourced prices. In general, warehouse clubs (Costco, Sam's Club) and hypermarket fuel centers (Walmart, Kroger) consistently offer prices 5–15 cents below branded stations in Mississippi. Avoid gas stations directly off major interstates, which typically charge a convenience premium.
Does Mississippi require reformulated gasoline?▾
Some metro areas within Mississippi may have seasonal or year-round reformulated gasoline requirements under EPA standards. Check the EPA's RFG locator for specific Mississippi counties. Outside designated RFG areas, conventional gasoline is sold at lower cost.
What fuel grade should I use for my car in Mississippi?▾
Most vehicles on the road today are designed for regular 87-octane unleaded gasoline. Check your owner's manual — only use premium (91+) if your vehicle requires or recommends it. Using premium when regular is specified wastes money without performance benefit. Midgrade (89 octane) is rarely the optimal choice for any modern vehicle.
Understanding Gas Prices in Mississippi
Gas prices in Mississippi are influenced by several regional factors including proximity to refineries, pipeline infrastructure, state regulations, and seasonal fuel blend requirements. Mississippi sits in the PADD 3 supply region (Gulf Coast), which means local prices largely trackGulf Coast refinery output.
The Mississippi state excise tax of 18.4¢ per gallon is among the lowest in the nation, adding approximately $0.18 to every gallon sold at the pump. On a 15-gallon fill-up, Mississippi drivers pay about $5.52 in combined state and federal fuel taxes.
Prices vary significantly across Mississippi's cities and regions. Urban areas like Jackson tend to have more competition between gas stations, which can keep prices closer to the state average. Rural areas may see prices 10–20¢ higher due to fewer competing stations and higher delivery costs.