Midwest region
IndianaGas prices
EIA doesn’t publish a weekly price for Indiana on its own. This figure starts from the Midwest average of $4.109 for the week of October 5, 2026 and adjusts it for Indiana’s fuel tax, which is 28.6¢ a gallon above the regional norm. How we estimate it.
Midwest prices this week
The regional averages Indiana’s figures are drawn from, in dollars per gallon.
- Regular
- $4.109
- Down $0.182 on the week
- Midgrade
- $4.562
- Down $0.194 on the week
- Premium
- $5.230
- Down $0.176 on the week
- Diesel
- $6.286
- Down $0.240 on the week
The regional price is toward the high end of its past-year range: over the past 52 weeks it has run from $2.585 to $4.405, averaging $3.437. It has moved +5.5% over four weeks and +16.4% over thirteen.
How much of a gallon is tax
Indiana charges 64.5¢ a gallon in state tax, the 3rd highest of 51 (the 50 states and D.C.). With the federal tax that is 82.9¢, about 19% of the pump price.
| State excise tax | 37.00¢ |
|---|---|
| Other state taxes and fees | 27.50¢ |
| Federal excise tax | 18.40¢ |
| Total per gallon | 82.90¢ |
| On a 15-gallon fill | $12.44 |
| Over a year of typical driving | $398 |
From EIA’s notes for Indiana: The Gasoline Use Tax (formerly the prepaid sales tax) is considered the equivalent of the 7% sales tax that would be collected by a retail merchant an.
Source: EIA federal and state motor fuel taxes, July 2026. A typical year assumes 480 gallons (about 12,000 miles at 25 mpg). Local sales taxes are not included.
Fuel tax in Indiana and its neighbours
Across the line in Kentucky, state tax is 38.1¢ a gallon lower, which is $5.71 less tax on a 15-gallon fill.
What driving in Indiana costs
- A 15-gallon fill
- $65.93
- A year of typical driving
- $2,110
- Versus the national average
- $20 a year more
Planning a drive? The fuel cost calculator prices a trip at this week’s Indiana figure, for your own car.
How we estimate the Indiana price
The U.S. Energy Information Administration surveys retail gasoline prices every Monday, but it reports individual figures for only nine states. Indiana is counted in the Midwest series, which averages it together with Illinois, Iowa, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, Oklahoma, South Dakota, Tennessee and Wisconsin.
Within one region, crude oil, refining and most delivery costs are shared. The biggest fixed difference from one state to the next is tax, which reaches the pump almost cent for cent. So we take the regional average and add the gap between Indiana’s tax (64.5¢) and the average tax across the region’s states (35.9¢).
Local taxes, how busy the local market is and how far the state is from a refinery all move real prices too, so treat this as a guide to within a few cents, not a quote. Our methodology covers how every figure on the site is sourced.
Gas prices in Indiana
- How much is gas in Indiana right now?
- Regular gasoline in Indiana is estimated at about $4.40 a gallon this week. That starts from the EIA's Midwest average of $4.109 and adjusts it for Indiana's fuel tax, which is 28.6¢ a gallon above the average across the region's states. The national average is $4.354.
- How much is the gas tax in Indiana?
- Indiana charges 37.00¢ a gallon in state excise tax plus 27.50¢ in other per-gallon taxes and fees, 64.50¢ in all. That ranks 3 of 51 (the 50 states and D.C.), highest first. With the 18.4¢ federal tax, a gallon carries 82.9¢ of tax.
- Is gas cheaper in a state next to Indiana?
- On tax alone, yes. Kentucky has the lowest fuel tax of Indiana's neighbours at 26.4¢ a gallon, 38.1¢ less than Indiana. On a 15-gallon fill that is $5.71 less tax. Station prices vary, so the saving at any one pump can be larger or smaller.
- Why is there no official weekly gas price for Indiana?
- The EIA's weekly survey samples about 1,000 stations nationwide, enough for reliable regional averages and for nine large states, but not for every state on its own. Indiana is counted in the Midwest series, which is updated every Monday and published on Tuesday.