Gas prices in Delaware: Central Atlantic average and state gas tax

Official weekly prices for Delaware come from the Central Atlantic regional series, since the EIA doesn't survey the state separately. For the week of October 26, 2026 regular averaged $4.25, −6.1¢ week over week. Delaware's gas tax rate stands at 23.0¢ per gallon including fees, ±0.0¢ compared with January 2015. It's the 44th highest among the 50 states and D.C.; diesel is taxed at 22.0¢.