Darien Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Month Ago Avg. | $4.45 | $5.01 | $5.39 | $4.95 | $4.19 |
Highest Recorded Average Gas Price In Darien Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $4.95 | 08/04/26 |
| Regular | $4.45 | 09/13/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Darien
Speedway in Darien (7502 South Cass Avenue)
7502 S Cass Ave, Darien, Illinois,
$4.53
Sep 24, 2026
0¢ Cashback
Speedway in Darien (7502 South Cass Avenue)
7502 S Cass AveDarienIllinois60561USA
Speedway in Darien (8301 Lemont Road)
8301 Lemont Rd, Darien, Illinois,
$4.55
Sep 24, 2026
0¢ Cashback
Speedway in Darien (8301 Lemont Road)
8301 Lemont RdDarienIllinois60561USA
Shell + Circle K in Darien (8975 Lemont Rd)
8975 Lemont Rd, Darien, Illinois,
$4.55
Sep 24, 2026
3¢ Cashback
Shell + Circle K in Darien (8975 Lemont Rd)
8975 Lemont RdDarienIllinois60561USA
CITGO in Darien (402 W Plainfield Rd)
402 Plainfield Rd, Darien, Illinois,
$4.55
Sep 24, 2026
0¢ Cashback
CITGO in Darien (402 W Plainfield Rd)
402 Plainfield RdDarienIllinois60561USA
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Gas Data Methodology
The fuel prices published in this guide are based on the results of research completed by Way.com’s data team. Using a mix of external and internal data, we analyzed millions of prices across U.S. ZIP codes and globally.