U.S. Gas Price Data
6 free CSV datasets covering 7,146 rows of U.S. gasoline and diesel prices and fuel taxes — national averages back to 1970, every week since 2000, all 50 states and D.C. Every figure is official U.S. Energy Information Administration data; what we add is the organising, the inflation adjustment, and the documentation.
U.S. national gas prices by year, 1970–present
Annual average U.S. retail price of regular gasoline, every year from 1970, in both nominal and inflation-adjusted dollars.
- Rows
- 56
- Coverage
- 1970–2025
- Format
- CSV · UTF-8
- Columns
- 4
| Column | Description |
|---|---|
| year | Calendar year. |
| price_nominal_usd_per_gal | Annual average price in that year's dollars. |
| price_real_usd_per_gal | Same price in constant dollars. Inflation-adjusted to constant dollars using the CPI-U (BLS, via FRED series CPIAUCSL). |
| source_basis | SEDS (pre-2000) or GND (2000 onward) — EIA's basis change. |
Source U.S. EIA. 1970–1999 from the State Energy Data System (SEDS) national series; 2000–present from the weekly/monthly retail (GND) series averaged to years.
Before you use it: EIA changed its retail price basis in 2000. The source_basis column marks which side of that break each row comes from — do not treat the series as a single uninterrupted survey.
Weekly U.S. national gas prices, 2000–present
Every weekly U.S. average retail price of regular gasoline EIA has published since 2000, nominal and inflation-adjusted.
- Rows
- 1,394
- Coverage
- 2000–2026
- Format
- CSV · UTF-8
- Columns
- 3
| Column | Description |
|---|---|
| week_ending | Survey week, ISO date (EIA publishes Mondays). |
| price_nominal_usd_per_gal | Weekly average price in that week's dollars. |
| price_real_usd_per_gal | Same price in constant dollars. Inflation-adjusted to constant dollars using the CPI-U (BLS, via FRED series CPIAUCSL). |
Source U.S. EIA weekly retail gasoline and diesel survey (GND), U.S. average, all formulations, regular grade.
Gas prices by state, annual 1970–present
Annual average retail gasoline price for all 50 states and D.C., every year from 1970 — a consistent all-51 basis for cross-state comparison.
- Rows
- 2,805
- Coverage
- 1970–2024
- Format
- CSV · UTF-8
- Columns
- 5
| Column | Description |
|---|---|
| state | State or district name. |
| state_abbr | Two-letter postal abbreviation. |
| year | Calendar year. |
| price_nominal_usd_per_gal | Annual average price in that year's dollars. |
| price_real_usd_per_gal | Same price in constant dollars. Inflation-adjusted to constant dollars using the CPI-U (BLS, via FRED series CPIAUCSL). |
Source U.S. EIA State Energy Data System (SEDS), motor gasoline, converted from $/MMBtu to $/gallon using EIA's finished-motor-gasoline heat content.
Before you use it: SEDS is an annual series and lags the current year — it is the only basis EIA publishes for all 51 jurisdictions, which is why it is used here rather than the weekly survey (which covers 9 states).
Current gas prices by state
The latest available regular gasoline price for all 50 states and D.C., with each state's rank and how it compares to the U.S. average.
- Rows
- 51
- Coverage
- September 14, 2026
- Format
- CSV · UTF-8
- Columns
- 6
| Column | Description |
|---|---|
| state | State or district name. |
| state_abbr | Two-letter postal abbreviation. |
| price_usd_per_gal | Current regular gasoline price. |
| price_basis | 'eia_published' = EIA's own published weekly value. 'usgasgauge_estimate' = our regional estimate, NOT an EIA figure — cite it to usgasgauge.com, not to EIA. |
| rank_cheapest | 1 = cheapest of the 51 jurisdictions. |
| week_ending | Survey week the value refers to, ISO date. |
Source U.S. EIA. Nine states with a weekly EIA retail series carry their own published value; the remaining 42 carry an estimate derived from their EIA PADD region's weekly move applied to the state's latest published SEDS annual average.
Before you use it: The price_basis column distinguishes the two: 'eia_published' rows are EIA's own values, 'usgasgauge_estimate' rows are ours and are not an EIA publication. Do not cite the estimates as EIA figures.
Diesel price history, weekly 2000–present
Weekly on-highway diesel prices for the U.S. average and California, the two diesel series EIA publishes that this site tracks.
- Rows
- 2,788
- Coverage
- 2000–2026
- Format
- CSV · UTF-8
- Columns
- 5
| Column | Description |
|---|---|
| area | 'U.S.' or 'California'. |
| area_code | EIA area code (NUS or SCA). |
| week_ending | Survey week, ISO date. |
| price_nominal_usd_per_gal | Weekly average diesel price in that week's dollars. |
| price_real_usd_per_gal | Same price in constant dollars. Inflation-adjusted to constant dollars using the CPI-U (BLS, via FRED series CPIAUCSL). |
Source U.S. EIA weekly retail gasoline and diesel survey (GND), No. 2 diesel, all formulations.
Gas tax by state, federal + state rates
Federal and state motor fuel tax rates on gasoline for all 50 states and D.C., broken into excise and other taxes and fees.
- Rows
- 52
- Coverage
- July 1, 2026
- Format
- CSV · UTF-8
- Columns
- 9
| Column | Description |
|---|---|
| jurisdiction | State, district, or 'Federal'. |
| abbr | Two-letter abbreviation; 'US' on the federal row. |
| excise_usd_per_gal | Excise component. |
| other_taxes_fees_usd_per_gal | Sales/use taxes, inspection and environmental fees (LUST fee on the federal row). |
| total_usd_per_gal | Total for this jurisdiction alone. |
| total_with_federal_usd_per_gal | State + federal combined. Empty on the federal row. |
| local_option_taxes | true where local option taxes may apply on top (EIA footnote 4). |
| edition | EIA edition the rates come from. |
| as_of | First day of that edition's month, ISO date. |
Source U.S. EIA, “Federal and state motor fuels taxes”, reissued each January and July. The edition column records which edition each row came from.
Before you use it: EIA lists taxes of general application and excludes county and local taxes. The local_option_taxes column flags states where local taxes may be charged on top, so a total here is state + federal only.
Attribution
Compiled from U.S. EIA data; free to use with attribution to usgasgauge.com. The underlying figures are U.S. government data and are not copyrightable; the compilation, inflation adjustment and documentation are ours, offered under CC BY 4.0. A link back to usgasgauge.com is all we ask.
Two things to check first
EIA changed its retail price basis in 2000, so the long national series is a stitch of two surveys — the source_basis column marks the break. And the current-by-state file mixes published EIA values with our regional estimates for the 42 states EIA does not survey weekly; the price_basis column marks every row as eia_published or usgasgauge_estimate, so a file taken out of context still says which is which.