Tri-City and Seattle are separated by a distance of approximately 322.6 mi in a straight line.
See also the distance Tri-City, OR to Seattle, WA calculated for a road trip (by car) , calculated for a bike ride , walk or public transport (bus, Metro, Train, Tram).
You also have the travel duration from Tri-City top Seattle and the cost of fuel (gasoline or diesel) to cover the distance between Tri-City and Seattle.
Distance (by car) between Tri-City and Seattle : .
Travel duration : .
Cost Fuel (Diesel): .
Cost Fuel (Petrol) : .
How to go to Tri-City by bus from any cities or places ? What is the best route from Seattle to Tri-City ? If you just wondering how far is Tri-City from Seattle ? You can find answers at these questions on this page and even more information like duration of the trip, the shorter and faster routes. Below, you have links to rent a car in Tri-City or Seattle if needed.

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| - | Tri-City | Seattle |
|---|---|---|
| State | Oregon | Washington |
| Population | 3,931 Habitants | 684,451 inhabitants |
| Average altitude | 240 m | 56 m |
| Longitude | -123.3117300 | -122.3320700 |
| Latitude | 42.9845600 | 47.6062100 |
| Distance in straight line | 322.6 mi | |
| Distance by car | ||
| Travel duration (by car) | ||
| Distance by bike | ||
| Travel duration (by bike) | ||
| Cities | Population | Distance from Seattle, OR |
|---|---|---|
| Tri-City, OR | 3,931 inhabitants | 0 km |
| Myrtle Creek, OR | 3,459 inhabitants | 4 km |
| Canyonville, OR | 1,911 inhabitants | 7 km |
| Riddle, OR | 1,191 inhabitants | 6 km |