Iowa · week of September 21, 2026
Gas prices in Iowa: Midwest average and state gas tax
Iowa falls in the EIA's Midwest region, and that regional number is the most precise public figure available: $4.39 a gallon for regular for the week of September 21, 2026, a +29.5¢ weekly change. Every gallon sold in Iowa includes 48.4¢ in state and federal taxes: 30.0¢ goes to the state, 18.4¢ to Washington. That ranks the state 28th out of 51 for gas taxes.
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
30.0¢state gas tax + fees
48.4¢state + federal tax
28th / 51rank for gas tax
The quick take
If you're near the border, compare: Missouri charges 30.0¢ in state gas taxes and Illinois charges 71.7¢, the low and high among Iowa's 6 neighbors.
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 | 30.0¢ | 32.5¢ |
| Jan 2026 | 30.0¢ | 32.5¢ |
| Jul 2025 | 30.0¢ | 32.5¢ |
| Jan 2025 | 30.0¢ | 32.5¢ |
| Jul 2024 | 30.0¢ | 32.5¢ |
| Jan 2024 | 30.0¢ | 32.5¢ |
| Jul 2023 | 30.0¢ | 32.5¢ |
| Jan 2023 | 30.0¢ | 32.5¢ |
| Jul 2022 | 30.0¢ | 32.5¢ |
| Jan 2022 | 30.0¢ | 32.5¢ |
| Jul 2021 | 30.0¢ | 32.5¢ |
| Jul 2020 | 30.0¢ | 32.5¢ |
| Jan 2020 | 30.5¢ | 32.5¢ |
| Jul 2019 | 30.5¢ | 32.5¢ |
| Jan 2019 | 30.7¢ | 32.5¢ |
| Jul 2018 | 30.7¢ | 32.5¢ |
| Jan 2018 | 30.5¢ | 32.5¢ |
| Jul 2017 | 30.5¢ | 32.5¢ |
| Jan 2017 | 30.7¢ | 32.5¢ |
| Jul 2016 | 31.7¢ | 33.5¢ |
| Jan 2016 | 31.8¢ | 33.5¢ |
| Jul 2015 | 31.8¢ | 33.5¢ |
| Jan 2015 | 22.0¢ | 23.5¢ |
Neighboring states
Illinois71.7¢Minnesota32.7¢Missouri30.0¢Nebraska32.7¢South Dakota30.0¢Wisconsin32.9¢
Map
$3.972$4.539$5.106
Regular gas
Region: Midwest · Gas tax by state · Diesel prices · U.S. average