Costco Gas Stations by State: Full Coverage Guide (2025)
There are 493 Costco gas stations across 46 states, but coverage is far from even. California alone has 111 locations — more than the next four states combined.
Costco gas stations are not available everywhere. As of 2025, there are 493 Costco gas stations across 46 states in the continental United States, covering 437 cities. Coverage is concentrated in the West and Sun Belt, with California alone accounting for more than one in five locations nationally.
States with the Most Costco Gas Stations
California dominates the national count by a significant margin, with 111 stations across 98 cities. Texas and Washington are a distant second and third. Together, the top five states — California, Texas, Washington, Arizona, and Illinois — account for nearly half of all Costco gas locations in the country.
States with Limited or No Coverage
Several states have very few Costco gas stations — typically one to three — meaning that most residents are too far from a station to make membership savings practical for fuel alone. Delaware is the only state with Costco warehouse locations but no Costco gas stations as of 2025.
States like Wyoming, Vermont, Maine, and West Virginia have limited Costco warehouse presence and correspondingly limited gas station coverage. If you live in one of these states, the "Near Me" tool can show you the closest station regardless of state lines.
California: A State of Its Own
With 111 stations and counting, California is by far the most Costco-gas-dense state in the country. The San Diego area alone has 4 stations, and the Bay Area — San Jose, San Francisco, and surrounding cities — has a cluster of well-trafficked locations. Los Angeles, Fresno, and Chula Vista are also among the most active markets in the state.
California's Costco stations tend to be heavily used due to the state's high baseline gasoline prices. The price gap between Costco and surrounding stations is often wider in California than in other states, making membership savings especially significant for frequent drivers.
New Stations and Expansion
Costco opens new gas stations alongside new warehouse locations. When a new warehouse is announced, a gas station is almost always part of the project. Costco has historically opened 20–30 new warehouses globally per year, and a significant portion of those are in the United States. New stations are added to this directory as they are confirmed open using our community-sourced data pipeline.
How to Find Your Nearest Station
The fastest way to find a Costco gas station near you is to use the location tool on this site. It uses your device's GPS (with permission) to show the closest open stations, their current hours, and any recently reported prices.
You can also browse by state using the states directory or view all stations on the interactive map.