Round Lake Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $3.68 | $4.68 | $5.2 | - | - |
| Month Ago Avg. | $3.45 | $4.68 | $4.97 | - | - |
Highest Recorded Average Gas Price In Round Lake Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $5.05 | 03/18/26 |
| Regular | $3.75 | 03/23/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Round Lake
Marathon in Round Lake (1175 W IL-134)
1175 W IL-134, Round Lake, Illinois,
$3.89
Mar 31, 2026
0¢ Cashback
Marathon in Round Lake (1175 W IL-134)
1175 W IL-134Round LakeIllinois60073USA
BP in Round Lake (320 W Nippersink Rd)
320 W Nippersink Rd, Round Lake, Illinois,
$4.01
Mar 31, 2026
0¢ Cashback
BP in Round Lake (320 W Nippersink Rd)
320 W Nippersink RdRound LakeIllinois60073USA
Find Cheap Gas Prices By State
Click on the state to view the State details
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.