In 2005, gas averaged $2.27 nationally — $3.74 in today’s money
regular, at the pump in 2005
inflation-adjusted (CPI-U)
The average U.S. price of a gallon of regular gasoline across 2005, shown both as it was at the pump and adjusted for inflation to constant 2025 dollars.
How 2005 ranks in the 1970–2025 record
The 14th-most-expensive year on record — the 43rd-cheapest of 56 years.
The 19th-highest pump price on record — before adjusting for inflation.
How U.S. prices moved through 2005
Weekly U.S. average for regular gasoline. The year’s high was $3.07 the week of September 5, 2005; the low was $1.78 the week of January 3, 2005 — a swing of 72.6%.
2005 vs. the years on either side
U.S. gas prices in 2005, answered
- What was the average price of gas in 2005?
- The U.S. average price of regular gasoline in 2005 was $2.27 per gallon — about $3.74 in 2025 dollars after adjusting for inflation, according to U.S. Energy Information Administration data.
- How does 2005 rank for gas prices in U.S. history?
- Adjusted for inflation, 2005 was the 14th-most-expensive year for regular gasoline out of the 56 years on record (1970–2025). In raw at-the-pump dollars it ranks 19th.
- Were gas prices higher in 2005 than in 2004?
- Adjusted for inflation, regular gasoline was more expensive in 2005 than in 2004, up 18.7% year over year ($3.15 → $3.74 in 2025 dollars).
- How high did gas prices get during 2005?
- The U.S. weekly average for regular gasoline peaked at $3.07 the week of September 5, 2005 and bottomed at $1.78 the week of January 3, 2005 during 2005.
Source: U.S. Energy Information Administration. 2005 is the average of EIA’s twelve monthly U.S. regular (all-formulations) retail prices; the weekly figures above are EIA’s weekly U.S. retail series. Inflation adjustment uses the BLS Consumer Price Index (CPI-U), constant 2025 dollars.