Costco Fuel Prices in Western Australia

As of 21 July 2026, Costco sells Unleaded Petrol in Western Australia from 156.7c per litre across 2 stations, averaging 159.7c — 24.1c below the Western Australia average of 183.8c. The cheapest Costco Unleaded right now is 156.7c at Costco Perth Airport.

Compare Costco prices across 2 stations in Western Australia. Updated 07:18 AM, 21 Jul 2026.

Western Australia data source: Petrolmate sources Western Australian prices directly from WA FuelWatch, the WA Government's 24-hour rule price scheme — WA retailers must publish their next-day prices by 2pm and hold them for 24 hours. We sync at 6am Perth time (9am AEDT).
Unleaded Petrol (159.7c)
Premium Unleaded 98 (181.7c)

Costco in Western Australia Insights

Costco by Suburb

Casuarina (160c)Perth Airport (160c)

Compare Brands in Western Australia

BrandAvg ULPStations
Burk165.4c16
7-Eleven169.1c63
Vibe170.6c54
Atlas171.6c23
Petro Fuels172.1c8
EG Ampol172.2c23
Metro173.0c9
United173.6c32

Related Pages

Costco Nationally Western Australia All Brands ULP in Western Australia Diesel in Western AustraliaCostco in New South WalesCostco in VictoriaCostco in QueenslandCostco in South Australia