Wisconsin · week of September 21, 2026
Gas prices in Wisconsin: Midwest average and state gas tax
Looking for gas prices in Wisconsin? The official weekly data stops at the regional level here. The Midwest average for regular is $4.39 (September 21, 2026), which runs −9.2¢ compared with the U.S. average. How much of the price is tax? In Wisconsin, state taxes and fees on gasoline add up to 32.9¢ a gallon, and the federal excise brings the total to 51.3¢, about 12% of the weekly average.
regional average · Midwest
$4.386
EIA weekly survey
$4.386regional average · Midwest
+29.5¢change in a week
+$1.38change in a year
$6.680diesel
32.9¢state gas tax + fees
51.3¢state + federal tax
21st / 51rank for gas tax
The quick take
Among the 4 states that border Wisconsin, Iowa has the lightest gas tax at 30.0¢ a gallon and Illinois the heaviest at 71.7¢.
Regular gas, weekly average · Midwest
September 30, 2024: $3.105 · September 21, 2026: $4.386 · min $2.585 · max $4.405
The state's gas tax since 2015
| Rate as of | Gasoline | Diesel |
|---|---|---|
| Jul 2026 | 32.9¢ | 32.9¢ |
| Jan 2026 | 32.9¢ | 32.9¢ |
| Jul 2025 | 32.9¢ | 32.9¢ |
| Jan 2025 | 32.9¢ | 32.9¢ |
| Jul 2024 | 32.9¢ | 32.9¢ |
| Jan 2024 | 32.9¢ | 32.9¢ |
| Jul 2023 | 32.9¢ | 32.9¢ |
| Jan 2023 | 32.9¢ | 32.9¢ |
| Jul 2022 | 32.9¢ | 32.9¢ |
| Jan 2022 | 32.9¢ | 32.9¢ |
| Jul 2021 | 32.9¢ | 32.9¢ |
| Jul 2020 | 32.9¢ | 32.9¢ |
| Jan 2020 | 32.9¢ | 32.9¢ |
| Jul 2019 | 32.9¢ | 32.9¢ |
| Jan 2019 | 32.9¢ | 32.9¢ |
| Jul 2018 | 32.9¢ | 32.9¢ |
| Jan 2018 | 32.9¢ | 32.9¢ |
| Jul 2017 | 32.9¢ | 32.9¢ |
| Jan 2017 | 32.9¢ | 32.9¢ |
| Jul 2016 | 32.9¢ | 32.9¢ |
| Jan 2016 | 32.9¢ | 32.9¢ |
| Jul 2015 | 32.9¢ | 32.9¢ |
| Jan 2015 | 32.9¢ | 32.9¢ |
Neighboring states
Iowa30.0¢Illinois71.7¢Michigan53.4¢Minnesota32.7¢
Map
$3.972$4.539$5.106
Regular gas
Region: Midwest · Gas tax by state · Diesel prices · U.S. average