If you have ever seen a gas price statistic quoted on the news, there is a good chance it came from AAA. The American Automobile Association has been tracking fuel prices across the United States for decades and has become the de facto standard source for retail gasoline price data. Gas Prices Live uses AAA data as its primary source, so understanding how AAA collects and reports that data helps you understand exactly what the numbers on this site represent.
Who AAA Is
The American Automobile Association is a federation of motor clubs founded in 1902, best known to most Americans for roadside assistance and travel services. With tens of millions of members across the United States, AAA has deep roots in American driving culture and a long-standing institutional interest in fuel prices and their impact on motorists.
AAA's fuel price tracking is one of its most widely used public services — the data is freely available, updated daily, and cited by news organizations, government agencies, and financial analysts as a reliable benchmark for retail gasoline conditions.
How AAA Collects Price Data
AAA compiles its gas price data from a combination of sources including the Oil Price Information Service, which aggregates credit card transaction data from fuel purchases at stations across the country. This approach captures actual transaction prices rather than posted prices, which provides a real-world reflection of what consumers are paying.
The data covers tens of thousands of retail fuel locations across all 50 states and Washington D.C., giving AAA one of the broadest geographic samples of any fuel price tracking service in the country.
What AAA Reports and When
AAA publishes updated statewide average prices for regular, midgrade, and premium unleaded gasoline as well as diesel fuel. Updates are published daily, typically reflecting the previous day's transaction data. This means the price you see on Gas Prices Live represents the most recently published AAA average for each state — generally current to within 24 hours.
The statewide averages AAA reports reflect the mean price paid for a gallon of regular unleaded gasoline across all sampled stations in a given state. This is a single number representing a broad average — not the price at any specific station or in any specific city.
Why Statewide Averages Matter
Individual gas station prices are highly variable — they change multiple times per week at many locations and can differ by 20 or 30 cents per gallon between stations just a few miles apart. This variability makes station-level data useful for finding the cheapest nearby option but difficult to use for understanding broader market conditions.
Statewide averages smooth out this noise to give a meaningful signal about overall price levels and trends. When the California statewide average rises 10 cents in a week, that tells you something real about the California fuel market — even if some stations went up 15 cents and others stayed flat.
For tracking trends, comparing states, and understanding the national picture, statewide averages are the right tool.
AAA vs Other Gas Price Sources
Several other organizations and services track gas prices, each with a different methodology and focus.
GasBuddy aggregates user-reported and crowdsourced station-level prices, making it excellent for finding the cheapest station near you right now but less reliable for statewide trend analysis due to the uneven geographic coverage of its user base.
The U.S. Energy Information Administration publishes weekly regional fuel price surveys that are highly authoritative but less granular than AAA's daily state-level data and updated less frequently.
AAA's combination of daily updates, full state coverage, and transaction-based methodology makes it the most practical source for the kind of daily state-level tracking that Gas Prices Live is built around.
What the Numbers on This Site Represent
Every price displayed on Gas Prices Live comes directly from AAA's published state averages for regular unleaded gasoline. When you see a price for your state on the homepage, it represents the average price paid per gallon at sampled stations across that state on the most recently available date.
The weekly, monthly, and yearly comparison figures are calculated by comparing today's AAA average to the AAA average published on the corresponding date in the past. A weekly change of plus 8 cents means the statewide average is 8 cents higher today than it was seven days ago according to AAA's published data.
This transparency about sourcing is important to us. You should know exactly where the data comes from and what it represents — which is why we cite AAA on every page and link directly to their source data in our footer.