How Many Costco Stores Are There in the US?
There are 621 Costco stores in the United States, in 528 cities across 49 states and territories (data refreshed July 2026).
California has the most Costco stores with 140 (22.5% of the total). Among the 77 brands we track, Costco ranks #0 by number of locations.
Top 5 states for Costco
- California — 140 stores
- Texas — 40 stores
- Washington — 34 stores
- Florida — 33 stores
- Illinois — 23 stores
Costco stores by state
| State | Stores | Share | Per 100,000 residents |
|---|---|---|---|
| California | 140 | 22.5% | 0.4 |
| Texas | 40 | 6.4% | 0.1 |
| Washington | 34 | 5.5% | 0.4 |
| Florida | 33 | 5.3% | 0.1 |
| Illinois | 23 | 3.7% | 0.2 |
| New Jersey | 21 | 3.4% | 0.2 |
| Arizona | 20 | 3.2% | 0.3 |
| New York | 19 | 3.1% | 0.1 |
| Georgia | 17 | 2.7% | 0.2 |
| Michigan | 17 | 2.7% | 0.2 |
| Virginia | 17 | 2.7% | 0.2 |
| Colorado | 16 | 2.6% | 0.3 |
| Minnesota | 14 | 2.3% | 0.2 |
| Utah | 14 | 2.3% | 0.4 |
| Ohio | 13 | 2.1% | 0.1 |
| Oregon | 13 | 2.1% | 0.3 |
| Maryland | 11 | 1.8% | 0.2 |
| Pennsylvania | 11 | 1.8% | 0.1 |
| Wisconsin | 11 | 1.8% | 0.2 |
| North Carolina | 10 | 1.6% | 0.1 |
| Indiana | 9 | 1.4% | 0.1 |
| Missouri | 9 | 1.4% | 0.1 |
| Connecticut | 8 | 1.3% | 0.2 |
| Hawaii | 8 | 1.3% | 0.6 |
| Nevada | 8 | 1.3% | 0.3 |
| Tennessee | 8 | 1.3% | 0.1 |
| Idaho | 7 | 1.1% | 0.4 |
| Alaska | 6 | 1.0% | 0.8 |
| Massachusetts | 6 | 1.0% | 0.1 |
| Montana | 6 | 1.0% | 0.5 |
| South Carolina | 6 | 1.0% | 0.1 |
| Alabama | 5 | 0.8% | 0.1 |
| Puerto Rico | 5 | 0.8% | 0.2 |
| Iowa | 4 | 0.6% | 0.1 |
| Kentucky | 4 | 0.6% | 0.1 |
| Louisiana | 4 | 0.6% | 0.1 |
| Nebraska | 4 | 0.6% | 0.2 |
| Oklahoma | 4 | 0.6% | 0.1 |
| Kansas | 3 | 0.5% | 0.1 |
| New Mexico | 3 | 0.5% | 0.1 |
| North Dakota | 2 | 0.3% | 0.3 |
| Arkansas | 1 | 0.2% | 0.0 |
| Delaware | 1 | 0.2% | 0.1 |
| Maine | 1 | 0.2% | 0.1 |
| Mississippi | 1 | 0.2% | 0.0 |
| New Hampshire | 1 | 0.2% | 0.1 |
| South Dakota | 1 | 0.2% | 0.1 |
| Vermont | 1 | 0.2% | 0.2 |
| Washington, D.C. | 1 | 0.2% | 0.1 |
| Total | 621 | 100% |
Frequently asked questions
How many Costco stores are there in the US?
StoresInfo.com lists 621 Costco stores in the United States as of July 2026, located in 528 cities across 49 states and territories.
Which state has the most Costco stores?
California has the most Costco stores with 140, about 22.5% of all Costco locations.
Which state has the fewest Costco stores?
Among the states where Costco operates, Arkansas has the fewest with 1.
How does Costco rank by number of stores?
Among the 77 brands we track, Costco ranks #0 by store count.
About these numbers
Counts are the open Costco locations in the StoresInfo.com directory, collected from the retailer's own store locator and last refreshed in July 2026. Stores that have closed are not counted. Population figures are 2024 estimates. Details in our Data & Editorial Policy. You may quote these figures with a link to this page.