Costco Gas Prices in Juneau, AK

Updated April 5, 2026 — Prices updated regularly from EIA data

$3.53

Costco Regular Unleaded — Est. price in Juneau

About Costco Fuel

Costco Wholesale operates fuel stations at most of its warehouse locations, offering some of the consistently lowest gas prices in America. Costco's massive purchasing power allows it to undercut traditional retail stations by 10-25 cents per gallon. Costco fuel meets TOP TIER detergent standards and is the same quality as brand-name alternatives at a significant discount.

Costco Loyalty Program

Costco membership required ($65/year individual or $130/year Executive). Executive members earn 2% back on all Costco purchases including fuel. For a family filling up weekly, fuel savings alone often exceed the membership cost.

Brand Price Comparison in Juneau

BrandEst. Pricevs. Costco
Costco THIS PAGE$3.53
Speedway$3.65+$0.12
Circle K$3.66+$0.13
Sunoco$3.69+$0.16
Marathon$3.70+$0.17
BP$3.72+$0.19
Mobil$3.73+$0.20
Exxon$3.74+$0.21
Shell$3.76+$0.23
Chevron$3.78+$0.25

Costco Prices in Nearby Cities

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Frequently Asked Questions

Costco Wholesale operates fuel stations at most of its warehouse locations, offering some of the consistently lowest gas prices in America. Costco's massive purchasing power allows it to undercut traditional retail stations by 10-25 cents per gallon. Costco fuel meets TOP TIER detergent standards and is the same quality as brand-name alternatives at a significant discount. The key differentiator for Costco fuel is its proprietary additive package, specifically formulated to clean fuel injectors, intake valves, and combustion chambers.
Costco typically prices above Costco's member-only rates. Costco fuel is consistently 15-25 cents below street prices from brands including Costco. For membership holders, Costco is almost always the cheapest option.
Like most fuel brands, Costco stations in Juneau adjust prices 1-3 times per week in response to wholesale cost changes. Prices typically move together across a brand's stations in a market area.
Most Costco locations offer diesel fuel alongside regular and premium grades. Major Costco stations in commercial and highway locations routinely stock diesel for trucks and commercial vehicles.

Related Gas Price Pages

All Gas Prices in JuneauCheapest Gas in JuneauGas Prices in AlaskaShell in JuneauExxon in JuneauBP in JuneauChevron in JuneauMobil in JuneauCircle K in JuneauRegular Unleaded at CostcoPremium Gasoline at CostcoDiesel Fuel at Costco