Gulf Coast region
LouisianaGas prices
EIA doesn’t publish a weekly price for Louisiana on its own. This figure starts from the Gulf Coast average of $3.911 for the week of October 5, 2026 and adjusts it for Louisiana’s fuel tax, which is 2.4¢ a gallon below the regional norm. How we estimate it.
Gulf Coast prices this week
The regional averages Louisiana’s figures are drawn from, in dollars per gallon.
- Regular
- $3.911
- Down $0.013 on the week
- Midgrade
- $4.423
- Down $0.007 on the week
- Premium
- $4.772
- Diesel
- $5.819
- Down $0.136 on the week
The regional price is near its most expensive point of the past year: over the past 52 weeks it has run from $2.372 to $3.989, averaging $3.195. It has moved +6.1% over four weeks and +17.0% over thirteen.
How much of a gallon is tax
Louisiana charges 20.9¢ a gallon in state tax, the 45th highest of 51 (the 50 states and D.C.). With the federal tax that is 39.3¢, about 10% of the pump price.
| State excise tax | 20.00¢ |
|---|---|
| Other state taxes and fees | 0.92¢ |
| Federal excise tax | 18.40¢ |
| Total per gallon | 39.33¢ |
| On a 15-gallon fill | $5.90 |
| Over a year of typical driving | $189 |
From EIA’s notes for Louisiana: State Inspection fee (applies to all petroleum products): $0.00125/gal. Motor Fuels Underground Storage Tank Trust Fund fee applies to gasoline, No.
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 Louisiana and its neighbours
Across the line in Texas, state tax is 0.9¢ a gallon lower, which is $0.14 less tax on a 15-gallon fill.
| State | State tax | Versus LA | On a 15-gal tank |
|---|---|---|---|
| Texas | 20.0¢ | −0.9¢ | −$0.14 |
| Louisiana | 20.9¢ | — | — |
| Mississippi | 24.4¢ | +3.5¢ | +$0.52 |
| Arkansas | 25.0¢ | +4.1¢ | +$0.61 |
What driving in Louisiana costs
- A 15-gallon fill
- $58.30
- A year of typical driving
- $1,866
- Versus the national average
- $224 a year less
Planning a drive? The fuel cost calculator prices a trip at this week’s Louisiana figure, for your own car.
How we estimate the Louisiana price
The U.S. Energy Information Administration surveys retail gasoline prices every Monday, but it reports individual figures for only nine states. Louisiana is counted in the Gulf Coast series, which averages it together with Alabama, Arkansas, Mississippi, New Mexico and Texas.
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 Louisiana’s tax (20.9¢) and the average tax across the region’s states (23.4¢).
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 Louisiana
- How much is gas in Louisiana right now?
- Regular gasoline in Louisiana is estimated at about $3.89 a gallon this week. That starts from the EIA's Gulf Coast average of $3.911 and adjusts it for Louisiana's fuel tax, which is 2.4¢ a gallon below the average across the region's states. The national average is $4.354.
- How much is the gas tax in Louisiana?
- Louisiana charges 20.00¢ a gallon in state excise tax plus 0.92¢ in other per-gallon taxes and fees, 20.93¢ in all. That ranks 45 of 51 (the 50 states and D.C.), highest first. With the 18.4¢ federal tax, a gallon carries 39.3¢ of tax.
- Is gas cheaper in a state next to Louisiana?
- On tax alone, yes. Texas has the lowest fuel tax of Louisiana's neighbours at 20.0¢ a gallon, 0.9¢ less than Louisiana. On a 15-gallon fill that is $0.14 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 Louisiana?
- 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. Louisiana is counted in the Gulf Coast series, which is updated every Monday and published on Tuesday.