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Costco Gas — Grafton, WI
Today: 6 AM – 10 PM
950 North Port Washington Road, Grafton, WI 53024(262) 204-1050
Current Prices
No prices reported in the last 24 hours.
How it compares
The average retail price of regular gas in the Midwest (PADD 2) region is $3.94/gal (U.S. EIA, week of 2026-08-17). Costco fuel is typically priced below the regional average.
Location & Directions
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Station Hours
Sunday6 AM – 7:30 PM
Monday6 AM – 10 PM
Tuesday6 AM – 10 PM
Wednesday6 AM – 10 PM
Thursday (Today)6 AM – 10 PM
Friday6 AM – 10 PM
Saturday6 AM – 8:30 PM
Closed: New Year's Day, Easter, Thanksgiving, Christmas. Full holiday schedule →
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TOP TIER™ certified gasoline
Data verified 111 days ago
Data confidence: 80%
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