Alabama diesel prices today
Alabama diesel prices todayDiesel averages $6.02 a gallon in Alabama on 2 October 2026 — the 43rd most expensive of 51 states, and down $0.11 on the week.
Alabama against the other states
$0.34 a gallon below the unweighted mean of AAA's 51 state averages ($6.36). The cheapest diesel is in Texas at $5.79, the dearest in California at $8.38.
Regular gas in Alabama is $4.01, so diesel costs $2.01 more per gallon — and more than premium at $4.88.
Tax on a gallon of diesel
$0.24 federal + $0.32 Alabama · 24th highest of 51. The rest — about $5.46 — is the fuel itself, refining, distribution and the retailer’s margin.
Rates as of 1 January 2026. Local taxes, where they apply, are not included.
Diesel prices by city in Alabama
AAA's diesel averages for 13 Alabama metro areas, cheapest first — $0.15 a gallon between the two ends.
| Metro area | Diesel | vs state |
|---|---|---|
| Mobile | $5.90 | −$0.12 |
| Daphne, Fairhope & Foley | $5.93 | −$0.09 |
| Anniston & Oxford | $5.95 | −$0.07 |
| Gadsden | $5.95 | −$0.07 |
| Auburn | $5.97 | −$0.05 |
| Montgomery | $5.99 | −$0.03 |
| Decatur | $6.01 | −$0.01 |
| Tuscaloosa | $6.03 | +$0.01 |
| Dothan | $6.03 | +$0.01 |
| Birmingham | $6.04 | +$0.02 |
| Huntsville | $6.04 | +$0.02 |
| Florence & Muscle Shoals | $6.05 | +$0.03 |
| Russell County | $6.05 | +$0.03 |
Show the data as a table
What a diesel fill-up costs in Alabama
- Diesel car or SUV — 18 gal$108.36
- Heavy-duty pickup — 34 gal$204.68
- Box truck — 60 gal$361.20
- Semi truck, two tanks — 250 gal$1,505.00
Diesel in neighbouring states
More for Alabama
Frequently asked questions
How much is diesel in Alabama today?
$6.02 a gallon, AAA's Alabama average for 2 October 2026 — the 43rd most expensive of 51 states. Regular gasoline is $4.01, so diesel costs $2.01 more per gallon.
Are diesel prices going up in Alabama?
Diesel is down $0.11 (1.9%) on a week ago, and up $2.57 on a year ago, when it was $3.45, on AAA's own earlier averages.
Where is diesel cheapest in Alabama?
Of the 13 metro areas AAA reports in Alabama, Mobile has the cheapest diesel at $5.90 a gallon and Russell County the dearest at $6.05. Individual stations vary around these averages.
How much is the diesel tax in Alabama?
$0.56 a gallon: $0.24 federal plus $0.32 in Alabama state taxes and fees, the 24th highest of 51. The state average is $0.36. Rates as of 1 January 2026.
Is diesel cheaper in a neighbouring state?
Yes — Florida ($5.92, $0.10 less), Georgia ($5.92, $0.10 less), Mississippi ($5.95, $0.07 less). On a 100-gallon fill that is up to $10.50; whether it is worth the drive depends on how far the border is.