Updated April 5, 2026 — Prices updated regularly from EIA data
$2.98
Average Regular Unleaded — Hattiesburg, Mississippi
Current Gas Prices in Hattiesburg
Motorists in Hattiesburg are seeing $$2.98 per gallon at the pump today for regular gas. This is $0.13 above the Mississippi average the Mississippi state average, driven by local competition and Hattiesburg's proximity to supply infrastructure.
Fuel Type
Price / Gallon
Grade
Trend
Regular Unleaded
$2.98
87 octane
▲ Rising
Mid-Grade
$3.44
89 octane
▲ Rising
Premium
$3.72
91-93 octane
▲ Rising
Diesel
$4.03
N/A
▲ Rising
Price Comparison
Hattiesburg Average
$2.98
Regular Unleaded
Mississippi State Average
$2.85
$0.13 above the Mississippi average
National Average
$3.99
$1.01 below the national average
About Gas Prices in Hattiesburg
Hattiesburg's position in Mississippi gives it Southeast supply chain supply chain characteristics. Refinery-direct brands like Valero and wholesale retailers like Costco typically offer the strongest value in the area. Premium brands like Shell and Chevron charge a quality markup that may or may not be worth it depending on your vehicle.
Gas Prices by Brand in This City
Estimated prices based on brand modifiers. Sorted cheapest to most expensive.
Each gallon of gas in Hattiesburg, Mississippi includes 18.4 cents in federal excise tax plus {tax} cents in Mississippi state fuel tax — a combined {totalTax} cents per gallon. On a 15-gallon fill-up, you pay ${taxTotal} in fuel taxes alone.
Today's average gas price in Hattiesburg is $$2.98 per gallon for regular unleaded. Premium is approximately ${premPrice} and diesel runs ${dslPrice}. Individual station prices vary by 15-25 cents across the metro area.
The cheapest gas in Hattiesburg is typically found at warehouse clubs (Costco, Sam's Club), high-volume discount chains like Circle K and Speedway, and stations in commercial strips with multiple competitors. Our brand comparison table shows current estimated prices by major brand in Hattiesburg.
Hattiesburg's current average of $$2.98 compares to the Mississippi statewide average of $$2.85. Hattiesburg is $0.13 above the Mississippi average the state average, which is typical for a metro of its size and location.
Gas stations in Hattiesburg typically update prices 1-3 times per week in response to wholesale market changes. Prices generally dip early in the week and rise Thursday-Sunday. Following weekly trends helps identify optimal fill-up windows.