⛽ Costco Gas Prices in Arizona
Estimated today · Based on Arizona AAA avg · Source: AAA + historical Costco savings data
Arizona Avg Today
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per gallon · regular
Est. Costco Price
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~15–30¢ below state avg
⚠️ Costco does not publish real-time prices. Estimated price uses today's Arizona AAA average minus Costco's typical 15–30¢/gal savings. Actual prices vary by location.
Arizona Gas Tax Context
Arizona's state gas tax is approximately 19¢ per gallon — one of the lowest in the US. This tax applies equally to all stations including Costco, so the 15–30¢ membership discount is on top of the post-tax street price.
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~11 Costco locations in Arizona
Use the Costcoapp or website to find the nearest fuel center and confirm today's price.
Membership required
Costco fuel is available to members only. $65–$130/year · Gold Star ($65/year)
Costco Gas in Arizona — FAQs
How much is gas at Costco in Arizona today?
Based on today's Arizona average of current local prices, Costco in Arizona is estimated at around $a few cents less per gallon. Costco typically prices 15–30¢ per gallon below the state average.
Is Costco gas cheaper than regular gas stations in Arizona?
Yes. Costco gas in Arizona is typically 15–30¢ per gallon cheaper than branded stations. At $the current state average, that's a meaningful per-fill-up savings.
Do you need a membership for Costco gas in Arizona?
Yes. A valid Costco Membership ($65–$130/year) is required to purchase fuel at any Costco location, including those in Arizona.
Why is gas more expensive in Arizona than the national average?
Arizona gas prices are currently near the national average of $—. State gas tax is approximately 19¢/gal.