Gas prices in Delaware today
Regular gas in Delaware averages $3.92 a gallon, 8% less than the U.S. average of $4.27. That makes Delaware one of the cheapest: rank 10 of 51 (1 = cheapest).
| Grade | Delaware | U.S. average | 15-gallon fill-up |
|---|---|---|---|
| Regular | $3.92 | $4.27 | $59 |
| Mid-grade | $4.51 | $4.78 | $68 |
| Premium | $4.84 | $5.17 | $73 |
| Diesel | $6.31 | $6.35 | $95 |
Source: AAA, Delaware average gas prices and AAA State Gas Price Averages, as of Oct 24, 2026. Fill-up = price × 15 gallons (our calculation). For metro-area prices, see AAA's Delaware page.
Taxes in the price: 23.0¢ a gallon in Delaware state taxes and fees plus the 18.4¢ federal tax, 41.4¢ in all, about 11% of today's price (Tax Foundation, July 2026; our calculation). Gas tax in Delaware.
What driving costs in Delaware
At $3.92 a gallon, a car that gets 27.2 mpg (the EPA's average for new vehicles) spends about $144 on gas every 1,000 miles, or 14.4 cents a mile (our calculation). Charging an electric car at Delaware's average home electricity price costs about $58 for the same 1,000 miles. Gas is only one part of the bill: full-coverage car insurance in Delaware averages $3,144 a year.
Planning a drive? The road trip cost calculator uses today's gas price, and the true cost of owning a car puts fuel next to insurance, repairs and depreciation.
Common questions
What is the average gas price in Delaware today?
Regular gas in Delaware averaged $3.92 a gallon on Oct 24, 2026, per AAA. Mid-grade was $4.51, premium $4.84 and diesel $6.31.
Is gas in Delaware cheaper than the national average?
Yes. Delaware's $3.92 is 8% less than the U.S. average of $4.27, which ranks it 10 of 51 states and DC (1 = cheapest, our ranking of AAA data).
How much does it cost to fill up a car in Delaware?
About $59 for 15 gallons of regular at today's Delaware average (our calculation). Driving 1,000 miles in a car that gets 27.2 mpg costs about $144 in gas.
Is an electric car cheaper to run than gas in Delaware?
At Delaware's average home electricity price, charging an EV for 1,000 miles costs about $58, compared with about $144 in gas for a 27.2 mpg car (our calculation from EIA and AAA prices, 31 kWh per 100 miles from fueleconomy.gov).
Nearby in the ranking
Put today's gas price on your siteFree for any website. One line of code, always up to date.Get the code
Paste this code where you want it to appear on your page. It keeps itself up to date. Please keep the credit link.