Castle Rock Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $3.61 | $4.09 | $4.39 | $4.14 | - |
| Month Ago Avg. | $3.63 | $4.09 | $4.41 | $4.15 | - |
Highest Recorded Average Gas Price In Castle Rock Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $4.17 | 09/18/25 |
| Regular | $3.65 | 07/01/25 |
Top 10 Gas Stations & Cheap Fuel Prices in Castle Rock
King Soopers in Castle Rock (5544 Promenade Pkwy)
5544 Promenade Pkwy, Castle Rock, Colorado,
$3.45
Oct 24, 2025
0¢ Cashback
Safeway in Castle Rock (880 S Perry St)
880 S Perry St, Castle Rock, Colorado,
$3.59
Oct 24, 2025
0¢ Cashback
Phillips 66 in Castle Rock (6385 Promenade Pkwy)
6385 Promenade Pkwy, Castle Rock, Colorado,
$3.69
Oct 24, 2025
0¢ Cashback
Circle K in Castle Rock (246 Founders Pkwy)
246 Founders Pkwy, Castle Rock, Colorado,
$3.79
Oct 24, 2025
0¢ Cashback
7-Eleven in Castle Rock (810 Wilcox St)
810 Wilcox St, Castle Rock, Colorado,
$3.99
Oct 24, 2025
0¢ Cashback
Maverik in Castle Rock (3991 LIMELIGHT)
3991 Limelight Ave, Castle Rock, Colorado,
$4.88
Oct 24, 2025
0¢ Cashback
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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.