Guilford County is included in the Greensboro-High Point, NC Metropolitan Statistical Area, which is also included in the Greensboro-Winston-Salem-High Point, NC Combined Statistical Area.
.[ Click here for an interactive MAP of all Grease locations!] The big dance contest (and some of the interior classroom scenes) were shot in East L.A., in the gym at. Huntington Park High School at 6020 Miles Ave, in Huntington Park (about 14 miles east of Venice High).
The interior of Forks High school was filmed at Madison High in Portland. The exterior of the high school and the parking lot scenes were filmed in Kalama, WA. I know that they filmed in Vernonia, OR, many areas of Portland, Gresham, and at some Oregon beaches. There were some other little areas as well.