Gas Prices in Milwaukee, WI
Updated May 21, 2026 · AAA data · Regular unleaded
Gas Prices in Milwaukee
Milwaukee's gas market is dominated by Kwik Trip, the La Crosse-based chain that has built a cult following in Wisconsin through aggressive fuel pricing. Costco in Menomonee Falls and Oak Creek provides the metro's best flat prices; the city's proximity to the Illinois border creates competitive pressure.
Prices at individual stations can vary by 5–15 cents within the same city depending on brand, location, and local competition. Use apps like GasBuddy to find the cheapest station near you in Milwaukee.
Frequently Asked Questions
What is the gas price in Milwaukee right now?
The average regular unleaded price in Milwaukee, Wisconsin is $4.490/gal as of May 21, 2026. Station prices vary — expect a range of roughly $4.390 to $4.610 across the metro area.
Is Milwaukee gas cheaper than Chicago?
Much cheaper — Milwaukee typically runs 55-70¢ cheaper than Chicago. Wisconsin's 31¢ state tax is dramatically lower than Illinois's 66¢, and Milwaukee doesn't have Cook County and City of Chicago surcharges. This is why Illinois border towns have a steady stream of Chicago-area drivers filling up in Wisconsin.
Where is cheapest gas in Milwaukee?
Kwik Trip is consistently the price leader throughout Milwaukee. Costco in Menomonee Falls offers the best single-station prices for members. Gas in Waukesha and Brookfield in suburban Milwaukee County typically runs slightly below city prices.
When is the cheapest day to buy gas in Milwaukee?
Nationwide data shows Monday and Tuesday tend to have slightly lower gas prices before weekly demand picks up. Avoid buying gas Thursday through Saturday when prices are typically higher.