Costco Gas Prices in Mount Prospect, IL
1 Costco fuel center in Mount Prospect · 0 of 1 sell diesel
Mount Prospect Avg Regular
$4.899
per gallon
Mount Prospect Avg Premium
$5.899
per gallon
Mount Prospect Avg Diesel
Not sold at any station in Mount Prospect
Mount Prospect regular is$0.10abovethe Illinois average ($4.799)
vs U.S. average$0.28above($4.622)
Premium runs$1.00above regular on average
Mount Prospect, Illinois has 1 Costco fuel center serving members in the area. Across Mount Prospect, regular gas averages $4.899 and premium runs about $1.00 higher at $5.899. That's about $0.10 above the Illinois statewide average of $4.799. Across Mount Prospect, regular pump prices have climbed about $0.44 over the past two weeks, from $4.459 two weeks ago. Premium has climbed about $0.54 over the same period. None of the Mount Prospect Costco fuel centers currently sell diesel.