Prices sourced from EIA Weekly On-Highway Diesel Survey. Updated weekly. For informational purposes only - confirm at the pump before fueling. Full disclaimer
DIESELCOST

Updated April 29, 2026 - EIA Weekly Survey

Diesel Cost per Gallon in Delaware (2026)

$5.49/GAL
-0.10 vs US average ($5.59)Rank #33 of 50 statesPADD 1

Diesel Tax Breakdown

Federal diesel excise tax24.4c/gal
Delaware state diesel tax22.0c/gal
Total tax46.4c/gal
Tax as % of price845%

Sources: Federation of Tax Administrators, EIA. Rates as of April 2026.

Nearby States Comparison

Maryland
$5.51+0.02
Pennsylvania
$5.75+0.26
New Jersey
$5.57+0.08
CALCULATE YOUR FUEL COST IN DELAWARE

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Sources: EIA Weekly On-Highway Diesel Fuel Survey, AAA Gas Prices (gasprices.aaa.com), Federation of Tax Administrators diesel tax table. Updated April 29, 2026. State prices are representative averages; actual pump prices vary by retailer and location.