Costco Gas Prices in Longmont, Colorado
Longmont · Warehouse #1628
205 EAST KEN PRATT BLVD, Longmont, Colorado 80501-8500
Prices updated: July 22, 2026 at 5:00 PM
Regular
$3.859
PRICE PER GALLON
Press
Premium
$4.499
PRICE PER GALLON
Press
Current gas prices at Costco #1628
This Costco gas station is located at 205 EAST KEN PRATT BLVD in Longmont, Colorado. The latest reported fuel prices are regular at $3.859/gal, premium at $4.499/gal. Prices were last updated on July 22, 2026 at 5:00 PM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$3.859+0.430 (12.5%)
Premium
$4.499+0.500 (12.5%)
DateRegPrem
Jul 22, 5:00 PM$3.859$4.499
Jul 22, 4:00 PM$3.759$4.399
Jul 21, 10:00 PM$3.659$4.299
Jul 18, 4:00 PM$3.559$4.259
Jul 17, 3:00 PM$3.499$4.159
Jul 16, 2:00 PM$3.499$4.099
Jul 15, 3:00 PM$3.399$4.099
Jul 14, 10:00 PM$3.349$4.099
Jul 12, 5:00 PM$3.399$4.099
Jul 11, 4:00 PM$3.399$4.059
Jul 10, 3:00 PM$3.349$3.999
Jul 8, 4:00 PM$3.349$3.959
Jul 7, 10:00 PM$3.349$3.949
Jul 4, 6:00 AM—$3.949
Jul 4, 5:00 AM$3.349$3.949
Jul 3, 4:00 PM$3.399$3.999
Jul 1, 9:00 PM$3.359$3.959
Jul 1, 4:00 PM$3.299$3.879
Jun 30, 10:00 PM$3.259$3.879
Jun 28, 4:00 PM$3.359$3.969
Jun 26, 8:00 PM$3.369$3.969
Jun 26, 3:00 PM$3.399$3.999
Jun 24, 10:00 PM$3.429$3.999