Washington Gas Prices
Current Price:
$3.450
per gallon
Current Price
$3.450
per gallon
Federal Tax
$0.184
per gallon
PADD Region
R50
PADD 5 - West Coast
Washington Gasoline Price Breakdown
| Component | Amount |
|---|---|
| Base Price (crude oil, refining, distribution, marketing) | $3.266/gal |
| Federal Excise Tax (all states) | $0.184/gal |
| Approximate Price at Pump | $3.450/gal |
Note: Pump price includes state excise taxes, state sales taxes, and other local fees which vary by state and are incorporated in the regional average.
How Washington Gasoline Prices Are Measured
Gasoline prices come from two independent sources that measure differently:
AAA Daily Average
Based on over 100,000 gas stations nationwide. Updated daily using actual pump prices reported by stations and credit card transaction data.
- Update frequency: Daily
- Granularity: State-level (all 50 states + DC)
- Methodology: Station-reported pump prices
EIA Weekly Survey
Published by the U.S. Energy Information Administration. Washington falls within PADD 5 - West Coast, one of five Petroleum Administration for Defense Districts (PADDs).
- Update frequency: Weekly (Mondays)
- Granularity: State-level
- Methodology: Volume-weighted survey of ~900 retail outlets per region
Washington is an EIA State-Reported Market
Washington is one of only 9 states where the EIA publishes state-specific gasoline data (the others are California, Texas, Florida, New York, Ohio, Minnesota, Colorado, Massachusetts). This means our API can provide more precise regional data for Washington alongside the AAA daily average. Even state-level sources can differ by $0.05–$0.30 due to different survey methodologies, sample sizes, and reporting timeframes.
Gas Prices in Washington Cities
Find gasoline prices in major Washington cities:
Get Washington Gas Prices via API
from oilpriceapi import OilPriceAPI
client = OilPriceAPI(api_key="YOUR_API_KEY")
# Get Washington gasoline state average
price = client.prices.get_latest(
by_code="GASOLINE_RETAIL_STATE_WA_USD"
)
print(f"Washington gas: ${price.price}/gal")
# Get national gasoline average
national = client.prices.get_latest(by_code="GASOLINE_USD")
print(f"US average: ${national.price}/gal")Frequently Asked Questions
Why is gas relatively affordable in Washington?
Washington gasoline is $3.450/gal. Prices in Washington are influenced by its location in the PADD 5 - West Coast, proximity to refineries, local state and county taxes, and regional supply and demand dynamics.
What cities in Washington have the cheapest gas?
Seattle, Spokane typically have competitive gasoline prices. View city-specific pages for the latest prices.
Can I get real-time Washington gas prices?
Yes! Use our API to get state-level gasoline price averages updated daily from AAA data, or national averages updated every 15 minutes. API code for Washington: GASOLINE_RETAIL_STATE_WA_USD
Related Pages
Need Washington Gas Price Data in Your App?
Free tier available • State averages • Historical data • Real-time updates
Get Free API Key →