Washington State Ferries
| Locale | Washington |
|---|---|
| Waterway | Puget Sound, Salish Sea |
| Transit type | Ferry |
| Owner | Washington State Department of Transportation |
| Operator | Washington State Department of Transportation |
| Began operation | June 1, 1951 |
| No. of lines | 10 |
| No. of vessels | 21 |
| No. of terminals | 20 |
| Daily ridership | 40,100 (weekdays, Q1 2025) |
| Yearly ridership | 19,148,800 (2024) |
| Website | wsdot |
Washington State Ferries (WSF) is a public ferry system in the U.S. state of Washington. It is a division of the Washington State Department of Transportation (WSDOT) and operates 10 routes serving 20 terminals within Puget Sound and in the San Juan Islands. The routes are designated as part of the state highway system. WSF maintains a fleet of 21 vessels that are able to carry passengers and vehicles.
The ferry system carried a total of 18.66 million riders in 2023—9.69 million passengers and 8.97 million vehicles. WSF is the largest ferry system in the United States and the second-largest vehicular ferry system in the world behind BC Ferries. The state ferries carried an average of 40,100 per weekday in the first quarter of 2025.