Gas Prices in Madison, WI Today

Updated May 20, 2026 — Prices updated regularly from EIA data

$2.94

Average Regular Unleaded — Madison, Wisconsin

Current Gas Prices in Madison

Drivers in Madison, Wisconsin are paying an average of $$2.94 per gallon for regular gasoline as of {month} {year}. Local prices range from $$2.79 at discount stations to $$3.14 at premium locations.

Fuel TypePrice / GallonGradeTrend
Regular Unleaded$2.9487 octane▼ Falling
Mid-Grade$3.3289 octane▲ Rising
Premium$3.5791-93 octane▬ Stable
Diesel$3.66N/A▼ Falling

Price Comparison

Madison Average
$2.94
Regular Unleaded
Wisconsin State Average
$2.80
$0.14 above the Wisconsin average
National Average
$4.49
$1.55 below the national average

About Gas Prices in Madison

Understanding what drives Madison gas prices helps you save every week. The metro area hosts dozens of competing fuel stations — high-volume retailers and warehouse clubs consistently offer the lowest prices, while stations near freeway entrances charge a convenience premium of 5-15 cents per gallon.

Gas Prices by Brand in This City

Estimated prices based on brand modifiers. Sorted cheapest to most expensive.

Fuel Type Prices in This City

Regular Unleaded
87 octane
Premium Gasoline
91-93 octane
Diesel Fuel
N/A

Gas Prices in Nearby Cities

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Frequently Asked Questions

Costco offers the cheapest gas wherever it operates in the Madison area. Among street stations, Circle K, Speedway, and Wawa (in applicable markets) consistently offer below-average prices. Shell, Chevron, and BP typically price above the local average.
At today's Madison average of $$2.94 per gallon, a standard 13-gallon sedan tank costs ${fillCost} to fill. A larger 20-gallon SUV or truck tank runs ${truckFill}. Choosing the cheapest local station can save $3-5 on each fill-up.
Monday and Tuesday are statistically the cheapest days to buy gas in most US cities including Madison. Prices rise Thursday through Sunday as weekend driving demand increases. Filling up Tuesday afternoon before price adjustments is a reliable strategy.
Madison and surrounding cities typically track similar fuel prices given shared supply infrastructure. Differences of 5-15 cents between nearby cities are common depending on local tax differences and competition levels.
A 10-cent savings on 15 gallons equals $1.50. If the cheaper station is 5 miles away and your car gets 25 MPG, the detour costs about 0.4 gallons. Savings above 15 cents per gallon are consistently worth moderate detours.

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More for Madison

Regular Gas Prices →Premium Gas Prices →Diesel Prices →Cheapest Gas →Gas Prices Nearby →Shell Prices →Exxon Prices →BP Prices →Chevron Prices →

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