The 10 States With the Priciest Gas

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10. Washington, D.C.

(Brett Ziegler for USN&WR)

A particularly expensive gas station in Washington, D.C. on April 7, 2010

Average Price of Gas: $2.97

The nation's capital comes in just below $3.00 for a gallon of regular gas, but prices are up more than 80 cents from a year ago.