Costco Modesto
3801 Pelandale Ave, Modesto, California 95356-8300
Regular
$5.799
Premium
$6.559
Diesel
N/A
Updated Oct 24, 2026View details →
Costco San Marcos Gas Prices
725 Center Drive, San Marcos, California 92069-3536
Current Fuel Prices
Regular
$6.099
per gallon
Premium
$6.599
per gallon
Diesel
N/A
Not available
Last updated: Oct 24, 2026. Prices may change without notice.
Station Information
- 725 Center Drive, San Marcos, California 92069-3536
- (760) 871-6867
- Executive Member Hours Mon-Fri: 9:00 AM - 8:30 PM Sat: 9:00 AM - 7:00 PM Sun: 9:00 AM - 6:00 PM Gold Star & Business Member Hours Mon-Fri: 10:00 AM - 8:30 PM Sat: 9:30 AM - 7:00 PM Sun: 10:00 AM - 6:00 PM
More Costco Gas Stations in California
Costco Northridge
8810 Tampa Ave, Northridge, California 91324-3519
Regular
$5.969
Premium
$6.399
Diesel
N/A
Updated Oct 24, 2026View details →
Costco Monterey Park
2000 Market Place Dr, Monterey Park, California 91755-7402
Regular
$5.859
Premium
$6.199
Diesel
N/A
Updated Oct 24, 2026View details →
Costco Ontario Home Showroom
5640 East Airport Dr, Ontario, California 91761-0000
Regular
N/A
Premium
N/A
Diesel
N/A
Updated Mar 17, 2026View details →
Costco Sacramento
7981 E Stockton Blvd, Sacramento, California 95823-9606
Regular
$5.899
Premium
$6.399
Diesel
N/A
Updated Oct 24, 2026View details →
Costco Laguna Marketplace
27220 Heather Ridge Rd, Laguna Niguel, California 92677-3418
Regular
$5.999
Premium
$6.299
Diesel
N/A
Updated Oct 24, 2026View details →