Costco Gas Prices in Mount Prospect, Illinois
Latest reported regular prices per gallon from 1 of 1 Costco gas station; most recent report Nov 9, 2026 (UTC). Prices may vary at the pump.
Average Price
$4.25/gal
Lowest Price
$4.25/gal
Highest Price
$4.25/gal
1 Stations Found
Showing 1 cheapest — search or filter to see more
$4.25
999 N ELMHURST RD
Mount Prospect
All Costco Gas Stations in Mount Prospect, Illinois
Browse every listed location and open its latest reported prices and station details.