In Twilight book, the story took place in Forks, Washington. But the movie Twilight, was filmed mostly in the Portland Area. The Twilight movie were filmed in the following locations in Oregon and Washington.
High school scene - Kalama HS in Kalama Washington ( see pictures ). Kalama High School was shown in Twilight, New Moon and Eclipse.
The water fall scene - Multnomah Falls in Columbia River Gorge 20 miles east of Portland (see pictures )
The prom scene - View Point Inn in Columbia River Gorge, near Corbitt, Oregon ( see pictures and link ).
The beach scene - Cannon Beach, Oregon ( see pictures ).
Charlie Swan's house - 184 S 6th St, Saint Helens, OR ( see picture )
Scenes for Port Angeles - The shopping trip for the prom dress were filmed in Saint Helens. OR. The bookstore, the prom dress shop, and the alley where Bella was met by a gang and the restaurent were located in St. Helen.
Police station - The police station where Sheiff Swan worked was filmed in Veronia, OR.
Boatman getting attacked by the vampire trio - It was filmed in Oregon City.
The bridge shown in the opening scene, showing Bella arriving in Forks - The Bridge of Gods in Cascade Locks, Oregon.
Bella and Edward standing on the branch of tall tree - Cape Horn on the Washington side of Columbia River Gorge (see photo)