Costco gas prices in Colorado
Colorado average
- Regular
- $3.759
- Premium
- $4.424
- Diesel
- $4.709
Average across 15 stations, per gallon · updated July 22, 2026
Costco has 15 gas stations in Colorado — the cheapest regular today is $3.599/gal at Costco Westminster CO in Westminster. Colorado Costco regular prices have climbed about $0.347 per gallon over the past month, from $3.412 to $3.759. Premium is up $0.367 over the same stretch, now at $4.424. Diesel is up $0.070 over the same stretch, now at $4.709.
Gas stations
15
Colorado
Avg regular
$3.759
per gallon, USD
Cheapest now
$3.599
Costco Westminster CO
30-day price trend
Regular$3.759Premium$4.424Diesel$4.709
View price history as a table
| Date | Regular | Premium | Diesel |
|---|---|---|---|
| July 22, 2026 | $3.759 | $4.424 | $4.709 |
| July 21, 2026 | $3.738 | $4.389 | $4.679 |
| July 20, 2026 | $3.717 | $4.412 | $4.399 |
| July 19, 2026 | $3.781 | $4.424 | $4.599 |
| July 18, 2026 | $3.722 | $4.406 | $4.549 |
| July 17, 2026 | $3.604 | $4.302 | $4.499 |
| July 16, 2026 | $3.511 | $4.184 | $4.399 |
| July 15, 2026 | $3.473 | $4.154 | $4.334 |
| July 14, 2026 | $3.491 | $4.152 | $4.279 |
| July 13, 2026 | $3.506 | $4.184 | $4.279 |
| July 12, 2026 | $3.507 | $4.197 | $4.279 |
| July 11, 2026 | $3.499 | $4.194 | $4.229 |
| July 10, 2026 | $3.440 | $4.108 | $4.229 |
| July 9, 2026 | $3.382 | $4.051 | $4.229 |
| July 8, 2026 | $3.274 | $3.938 | $4.164 |
| July 7, 2026 | $3.302 | $3.930 | $4.199 |
| July 6, 2026 | $3.326 | $3.946 | $4.224 |
| July 5, 2026 | $3.379 | $3.994 | $4.234 |
| July 4, 2026 | $3.376 | $3.994 | $4.234 |
| July 3, 2026 | $3.388 | $4.010 | $4.234 |
| July 2, 2026 | $3.379 | $3.994 | $4.239 |
| July 1, 2026 | $3.261 | $3.860 | $4.229 |
| June 30, 2026 | $3.259 | $3.866 | $4.264 |
| June 29, 2026 | $3.242 | $3.846 | $4.299 |
| June 28, 2026 | $3.278 | $3.885 | $4.324 |
| June 27, 2026 | $3.294 | $3.894 | $4.379 |
| June 26, 2026 | $3.324 | $3.936 | $4.464 |
| June 25, 2026 | $3.341 | $3.972 | $4.509 |
| June 24, 2026 | $3.374 | $4.012 | $4.609 |
| June 23, 2026 | $3.412 | $4.057 | $4.639 |
Cities with multiple stations
All stations in Colorado
All 15 stations, sorted by regular price from lowest to highest. Prices in $/gal.
| Rank | Station | Regular | Premium | Diesel |
|---|---|---|---|---|
| 1 | Costco Westminster COWestminster | $3.599 | $4.399 | — |
| 2 | Costco ArvadaArvada | $3.659 | $4.359 | — |
| 3 | Costco TimnathTimnath | $3.659 | $4.259 | $4.459 |
| 4 | Costco NE DenverDenver | $3.689 | $4.339 | — |
| 5 | Costco SheridanSheridan | $3.699 | $4.399 | — |
| 6 | Costco SW DenverLittleton | $3.699 | $4.399 | — |
| 7 | Costco ThorntonThornton | $3.699 | $4.399 | — |
| 8 | Costco AuroraAurora | $3.729 | $4.329 | — |
| 9 | Costco E Colorado SpringsColorado Springs | $3.739 | $4.399 | — |
| 10 | Costco W Colorado SpringsColorado Springs | $3.739 | $4.399 | — |
| 11 | Costco LongmontLongmont | $3.759 | $4.399 | — |
| 12 | Costco ParkerParker | $3.849 | $4.459 | — |
| 13 | Costco Douglas CountyLittleton | $3.859 | $4.499 | — |
| 14 | Costco SuperiorSuperior | $3.859 | $4.559 | — |
| 15 | Costco GypsumGypsum | $4.149 | $4.759 | $4.959 |
Showing 1–10 of 15 stations